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Spiral wound gaskets is formed of V-shaped Metallic strip and soft non-metallic filler. Support rings, inside and Outside the spiral, improve the gasket’s handing, fitting and Versatility. Depend on its excellent compression resilience, it is suitable for sealing spots where the alteration of temperature and pressure are frequent. Types: YA600-R Basic Type Gaskets Basic construction type, inner and outer diameters are reinforced with several piles of metal without filler to give greater stability and better compression characteristics. – Suitable for tongue and groove, male and female or grooved to flat face flange assemblies. YA600-IR Inner Ring Type Gaskets Solid inner metal ring acts as a compression stopper. To prevent accumulation of solids, reduce turbulent flow of process fluids and minimize erosion, damages of gasket between flange bore and the inside diameter, the annular space is filled up by solid inner metal ring. – Suitable for male and female pipe flanges. YA600-CG Outer Ring Type Gaskets Solid outer ring accurately locates the gasket on the flange face to give the additional radial strength to prevent the gasket blowout and acts as a compression limiter. In case of installing the outer ring, it is very easy to install the gasket to flange face because the end of outer ring will touch at bolts – Suitable for use with flat face and raised face flanges. For class 900 and above an internal ring is recommended. YA600-CGI Inner & Outer Rings Type Gaskets A inner ring and outer ring type gasket will give an additional compression limiting stopper for gasket inner and outer side. It will prevent the corrosions on flange face at annular space. – Suitable for use with flat face and raised face flanges and specified for high pressure / temperature service – Class 900 and above or where corrosive or toxic media are present. Typical Applications Pipe, valve, pump, thermal exchange, condensing tower, plain hole and man hole of flange, etc. Petrochemical, chemical, mechanical manufacturer, power station, metallurgy, shipbuilding, medical and pharmaceutical unclear power station and navigation, etc. Prime Features > Gasket are made in a wide variety of sizes and shapes. > Combinations of metal strip and filler are selected to suit the specific fluid media and operating conditions. > Quick to install and remove > Make gaskets suitable for high pipeline pressure on flat or raised flange faces. > Temperatures from cryogenic up to 1000 °C Specifications > Products are manufactured in accordance with all relevant gasket standards to suit flange designations: ASME B 16.20, ASME B 16.5, BS1560, ASME B 16.47 A (B), BS EN 1092, DIN, JIS, and NF, etc. > Color cord as ASME B 16.20 on request. Marking & Stamping: Coloring Guardlines for Spiral Wound Gaskets Spiral Wound Gaskets Package Types Between 1/2” ~ 24” gaskets are packaged by plastic clips each 10 pcs. Upto 24” gaskets packaged by soft cotton tape each. To ensure that clients receive the highest quality of spiral wound gaskets. More informations, please feel free to contact by email sales@wilsonpipeline.com Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

wilsonpipeline’s Ring Joint Gaskets are precision machined, metallic sealing rings suitable for high pressure and high temperature applications. RTJ gaskets are designed to seal by “initial line contact” or wedging action between the mating flange and the gasket. By applying pressure on the seal interface through bolt force, the softer metal of the gasket flows into the micro-fine structure of the harder flange material, creating a very tight and efficient seal. ​ wilsonpipeline’s Ring Joint gaskets are manufactured in accordance with API-6A and ASME B16.20 specifications and come in four basic profiles: R-Oval – Ring Gasket Style R ring joint gaskets are manufactured in accordance with both API 6A and ASME B16.20 size/ratings. Available in both oval and octagonal configurations, both types are interchangeable on modern octagonal type grooved flanges. Style R Ring Joint gaskets can be manufactured in accordance with all relevant standards to suit the following flange designations: API- 6A, ASME/ANSI B16.5, MSS SP44 (ASME B 16.47 Series A) & BS 1560.  Tolerances: (Inches) Width of Ring …………………………………±0.008 Height of Ring ………………………………..±0.020 Pitch Diameter ………………………………..±0.007 R-Octagonal – Ring Gasket Style R octagonal ring joint gaskets are manufactured in accordance with both API 6A and ASME B16.20 size/ratings. Available in both oval and octagonal configurations, both types are interchangeable on modern octagonal type grooved flanges. Style R Ring Joint gaskets can be manufactured in accordance with all relevant standards to suit the following flange designations: API- 6A, ASME/ANSI B16.5, MSS SP44 (ASME B 16.47 Series A) & BS 1560.  Tolerances: (Inches) Width of Ring …………………………………±0.008 Height of Ring ………………………………..±0.020 Pitch Diameter ………………………………..±0.007 Angle of 23° ………………….±1/2° RX – Ring Gasket Style RX RTJ gaskets are a pressure-energized adaptation of the standard Style R gasket. The RX is designed to fit the same groove design as a standard Style R, making the joints interchangeable. The modified design uses a pressure-energized effect that improves the efficiency of the seal as the internal pressure of the system increases. Tolerances:(Inches) Width of Ring ………………………………….+0.008,-0.000 Height of Ring …………………………………+0.008,-0.000 (A plus tolerance of 0.008 inches for width and height is permitted, provided the variation in width or height does not exceed 0.004 inches throughout its entire circumference) OD of Ring ……………………………………..±0.020,-0.000 Angle of 23°……………………………………..±1/2°  Note: Only Rings RX82 through RX91 have a pressure passage hole through the cross section. Center line of hole is located on the mid-point of the width flat.  Hole diameter shall be as follows: RX82 through RX85………………………….0.06” RX86 and RX87………………………………..0.09” Rings RX88 through RX91………………….0.12” BX – Ring Gasket Style BX ring joint pressure energized gaskets are manufactured in accordance with API 6A and are designed for use on pressurized systems up to 20,000 PSI. When correctly fitted, the style BX gasket allows virtual surface-to-surface contact of the flange faces, which means that the gasket is fully trapped on both the inner and outer diameters. All BX gaskets incorporate a pressure balance hole to ensure equalization of pressure that may be trapped in the grooves. Tolerances:(Inches) Width of Ring …………………………………+0.008,-0.000 Hole Size ……………………………………….±0.02 Height of Ring ………………………………..+0.080,-0.000 OD of Ring ……………………………………..+0.000,-0.006 Angle of 23° …………………………………..±1/4°  One pressure passage hole required per ring on centerline. A plus tolerance of 0.008 inches for width of ring and height of ring is permitted, provided the variation in width or height does not exceed 0.004 inches throughout its entire circumference. NOTE: Radius of the ring shall be 8% to12% of the ring height. These basic shapes are used in a variety of applications with pressures up to 20,000 PSI. The dimensions are standardized and require specially grooved flanges by where a corresponding “R” or “BX” number is assigned for pipe size and pressure class for gasket identification. To ensure cost effectiveness and reliability, wilsonpipeline’s CNC automation and state-of-the-art coordinate measuring systems provide reliable benchmarks for our on-going quality control operations. Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

Serrated Gaskets (Kammprofile Gaskets) are machined from solid metals in a variety of shapes. Serrated Gaskets are designed for high pressure,high temperature or highly corrosive applications by selecting the most suitable material and shapes. Serrated Gaskets are made of many kinds of metal. There are SS304 Serrated gasket, SS304L serrated gasket, SS316 serrated gasket, SS316L serrated gasket,carbon steel serrated gasket, copper serrated gasket, tinplate serrated gasket etc. Serrated gaskets can also be made of some special type of materias. The metal of serrated gasket is based on the temperature, preesure and liquid. Serrated Gaskets (Kammprofile Gaskets) consist of a metal core, stainless steel with concentric grooves on both sides. A sealing layer is usually applied on either side and depending on the service duty. The material for this layer can be expanded graphite, PTFE, asbestos free gasket sheeting materials or some soft metal. It can be used without sealing layers to provide an excellent sealing but there is a risk of flange surface damage especially at high seating pressure. Serrated Gaskets (Kammprofile Gaskets) are the preferred gasket when improved performance at low seating stresses is required. Serrated Gaskets features excellent anti-blow-out properties linked with the reliability of a solid metal-to -metal seal combined with a soft sealing face to provide a tighter joint. It is particularly suitable for applications where high temperature,pressures and fluctuating conditions are encountered. Non-metal cover layers ensure that flanges are not damaged even at extreme loads. This gasket is an ideal replacement of jacketed gaskets for heat exchangers,vessels, reactors and various flange connections. Material Selection: Metallic Materials Code of Germany Hardness/HB Temperature Density g/cm3 Thickness mm Carbon Steel 1.1003/1.0038 90~120 -60~500 7.85 2 3 4 SS304,SS304L 1.4301/1.4306 130~180 -250~550 7.93 SS316,SS316L 1.4401/1,4404 130~180 -250~550 7.98 Prime Features Of Serrated Gaskets (Kammprofile Gaskets) > Suitable for a range of chemicals > Suitable for use in high pressure and high temperature applications > Can be refurbished and reused > Can be manufactured to suit standard flange applications and vessels. > Can be manufactured for use with narrow flanges > Better leak tightness than spiral wound gasket Material of construction Carbon steel, stainless steel, 321, 347, monel 400, inconel, incoloy, nickel, titanium, hastelloy, copper Coating materials: Graphite, PTFE etc. Surface Materials: Flexible Graphite, Asbestos Shet, Non-asbestos sheet,PTFE,Mica,Lead, Aluminum, etc. APPLICATIONS Of Serrated Gaskets (Kammprofile Gaskets) Accommodates standard ASME flanges as well as weaker and non-circular flanges Economical replacement for jacketed heat exchanger gaskets Seals less-than-perfect flanges Handles pressures from vacuum to Class 2500 Withstands temperatures from cryogenics to 2000°F (1090°C)- depending on sealing material and metal Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

· DIN2527 Blind Flanges · DIN 2573, DIN 2576 Flat Flange for Welding (Slip On) · DIN 2501 Flat Flange for Welding (Slip On) · DIN 2502, DIN 2503 Flat Flange for Welding (Slip On) · DIN 2575 Flat Flange for Welding _Slip On) · DIN 2630, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637 Welding Neck Flanges (1-160 bar) · DIN 2673 Loose Flanges and Rings for Welding (Slip On Flanges and Plain Collars) · DIN 2652, DIN 2653, DIN 2655, DIN 2656 Loose Flanges and Rings for Welding _Slip On Flanges and Plain Collars) · DIN 2641, DIN 2642 Lapped / Loose (Lap Joint) Flanges Plain Collars · DIN 2565, DIN 2566, DIN 2567, DIN 2568, DIN 2569 BSPT Threaded Flanges with Neck · DIN 2627, DIN 2628, DIN 2629, DIN 2638 Welding Neck Flanges (160-400 bar) · DIN 28115 Long Neck Welding Flanges · DIN 28117 Block Flanges (10-40 bar) · DIN 2558 Oval Plain Threaded Flanges, DIN 2561 Oval Flanges, with Neck Threaded · DIN 86029, DIN 86030 Hubbed Slip On Flanges for Welding · DIN 86057 Welding On Flanges (Collars) for Bulkhead Fittings for Pipes · DIN 2512, DIN 2513, DIN 2514, DIN 2519, DIN 2526, DIN 2559 – Flange design standards: (including – Flanges, tongue and groove joint faces. Rated pressure from 10 to 160. Design sizes. DIN 2512; Flanges, male and female joint faces. Rated pressure from 10 to 100. DIN 2513; Flanges, groove for rubber seal ring. Rated pressure from 10 to 40. Design sizes. DIN 2514; Flanges, Shape V17 & R17: Female according to DIN 2517; Steel flanges: Surface condition. DIN 2519; Flanges: Joint face shape. DIN 2526; Flanges: Welding ends of the neck. DIN 2559; Flanges, Groove for joint according to DIN 2695; Flanges, Groove for jount according to DIN 2696) · DIN 2526 Form C (UNI 2229-67) Raised Face Dimensions · DIN Flange Bolting Specifications · Flange Gasket Dimensions per DIN 2690, DIN 2691, DIN 2692, DIN 86071 & DIN 86072 DIN Flange Summary Chart Description Rated Pressure / Presión Nominal / Nenndruck (in bar) (1 bar = 14.5 psi) 1 2.5 6 10 16 25 40 64 100 160 250 320 400 DIN Blind Flanges 2527 2527 2527 2527 2527 2527 2527 Flat flange for welding (slip-on) 2573 2576 2502 2503 2503 Welding neck flanges 2630 2630 2631 2632 2633 2634 2635 2636 2637 2638 2628 2629 2627 Lapped flanges, Plain collars 2641 2642 Loose flanges and rings for welding 2652 2653 2655 2656 Loose flanges and rings with neck for welding 2673 Oval plain threaded flanges 2558 Oval flanges, with neck threaded 2561 2561 Threaded flanges with neck 2565 2566 2566 2567 2567 2568 2569 Long neck welding flanges 28115 28115 Hubbed slip-on flanges for welding 86029 86030

·ANSI Flange Types ·ANSI Flange Face Type, Face Finish & Tolerance ·ANSI Welding Neck Flanges – Welding Ends Types ·ANSI B16.5 & B16.47 Ring Type Joint Flanges ·ANSI B16.5 Welding Neck Flange (150lb-2500lb) ·ANSI B16.5 Slip On Flange (150lb-1500lb) ·ANSI B16.5 Blind Flange (150lb-2500lb) ·ANSI B16.5 Socket Welding Flange (150lb-1500lb) ·ANSI B16.5 Lap Joint Flange (150lb-2500lb) ·ANSI B16.5 Threaded Flange (150lb-2500lb) ·ANSI B16.47 Flange Series A / MSS SP44 Flange (150lb-900lb) ·ANSI B16.47 Flange Series B / API 605 Flange (75lb-900lb) ·API 6A Flange

·Flanges according to DIN EN 1092-1 – PN2.5 ·Flanges according to DIN EN 1092-1 – PN6 ·Flanges according to DIN EN 1092-1 – PN10 ·Flanges according to DIN EN 1092-1 – PN16 ·Flanges according to DIN EN 1092-1 – PN25 ·Flanges according to DIN EN 1092-1 – PN40 ·Flanges according to DIN EN 1092-1 – PN63 ·Flanges according to DIN EN 1092-1 – PN100 ·Flanges according to DIN EN 1092-1 – PN160-PN400 ·Flange facings according to DIN EN 1092-1 ·Flange masses (weights) according to DIN EN 1092-1 ·Flange pressure/temperature ratings according to DIN EN 1092-1 · Flange type (typ) as in DIN EN 1092-101 (Plate [slip-on] flanges for welding)13 (Hubbed threaded flanges)02 (Loose plate flanges with weld-on plate collar)21 (Integral flanges)04 (Loose plate flanges with weld-neck collar)32 (Weld-on plate collars)05 (Blank [blind] flanges)33 (Lapped pipe ends)11 (Weld-neck flanges)34 (Weld-neck collars)12 (Hubbed slip-on flanges for welding) Correlation of the flange sizes & types covered by the older DIN Standards with those included in DIN EN 1092-1DIN StandardFlange type as in DIN EN 1092-1Item descriptionSize range (DN) as in DIN StandardSize range (DN) as in DIN EN 1092-1*2512–Tongue and grooveUp to PN 160 DN 4 to DN 1000Up to PN 100 DN 10 to DN 2000*2513–Spigot and recessDN 10 to DN 1000Up to PN 100 DN 10 to DN 2000*2514–Spigot with groove and recessDN 10 to DN 3000Up to PN 100 DN 10 to DN 2000252705Blank flanges, PN 2,5Not specified.DN 10 to DN 2000 05Blank flanges, PN 6DN 10 to DN 500DN 10 to DN 2000 05Blank flanges, PN 10DN 10 to DN 500DN 10 to DN 1200 05Blank flanges, PN 16DN 10 to DN 500DN 10 to DN 1200 05Blank flanges, PN 25DN 10 to DN 500DN 10 to DN 600 05Blank flanges, PN 40DN 10 to DN 500DN 10 to DN 600 05Blank flanges, PN 64 (now PN 63)DN 10 to DN 400DN 10 to DN 400 05Blank flanges, PN 100DN 10 to DN 350DN 10 to DN 3502543–Cast steel flanges, PN 16DN 10 to DN 2200DN 10 to DN 20002544–Cast steel flanges, PN 25DN 10 to DN 2000DN 10 to DN 20002545–Cast steel flanges, PN 40DN 10 to DN 1600DN 10 to DN 6002546–Cast steel flanges, PN 64 (now PN 63)DN 10 to DN 1200DN 10 to DN 12002547–Cast steel flanges, PN 100DN 125 to DN 700DN 10 to DN 500256613Hubbed threaded flanges, PN 10 to PN 16DN 6 to DN 100DN 10 to DN 600257301Plate flanges for brazing or welding, PN 6DN 10 to DN 500DN 10 to DN 600257601Plate flanges for brazing or welding, PN 10DN 10 to DN 500DN 10 to DN 600263011Weld-neck flanges, PN 1 and PN 2,5DN 10 to DN 4000DN 10 to DN 4000263111Weld-neck flanges, PN 6DN 10 to DN 3600DN 10 to DN 3600263211Weld-neck flanges, PN 10DN 10 to DN 3000DN 10 to DN 3000263311Weld-neck flanges, PN 16DN 10 to DN 2000DN 10 to DN 2000263411Weld-neck flanges, PN 25DN 10 to DN 1000DN 10 to DN 1000263511Weld-neck flanges, PN 40DN 10 to DN 500DN 10 to DN 600263611Weld-neck flanges, PN 64 (now PN 63)DN 10 to DN 400DN 10 to DN 400263711Weld-neck flanges, PN 100DN 10 to DN 350DN 10 to DN 350264102, 33, 32Loose plate flanges, lapped pipe ends, weld-on plate collars, PN 6DN 10 to DN 1200DN 10 to DN 600264202, 33, 32Loose plate flanges, lapped pipe ends, weld-on plate collars, PN 10DN 10 to DN 800DN 10 to DN 600265502, 33, 32Loose plate flanges, weld-on plate collars, PN 25DN 10 to DN 500DN 10 to DN 600265602, 33, 32Loose plate flanges, weld-on plate collars, PN 40DN 10 to DN 400DN 10 to DN 600267304, 34Loose plate flanges with weld-neck collar, PN 10DN 10 to DN 1200DN 10 to DN 600*Flange feature only; not the call out for a complete flange Some Flange feature equivalents: DIN EN 1092 from DINDIN EN 1092-1DINDIN EN 1092-1 Type B Raised FaceDIN 2526 Form CDIN EN 1092-1 Type C TongueDIN 2512 Feder (Form F)DIN EN 1092-1 Type D GrooveDIN 2512 Nut (Form N)DIN EN 1092-1 Type E SpigotDIN 2513 Vorsprung (Form V)DIN EN 1092-1 Type F RecessDIN 2513 Rücksprung (Form R)

· UNI 2225-67 esecuzione SM* E SF** (DIN 2513 FORM V 13) and (DIN 2513 FORM R 13) Weld neck flanges · UNI 2226-67 esecuzione DM * E DF ** (DIN 2512 FORM F) and (DIN 2512 FORM N) Weld neck flanges · UNI 2229-67 (DIN 2526 FORM C) Weld neck flanges · UNI 2253-67 PN 6 and UNI 2254-67 PN 16 BSPT Threaded Flange with collar · UNI 2255-67 PN 40, UNI 2256-67 PN 64 and UNI 2257-67 PN 100 BSPT Threaded Flange with hub · UNI 2276-67 PN6 (DIN 2575 ND6), UNI 2277-67 PN10 (DIN 2576 ND10), UNI 2278-67 PN16 (DIN 2577 ND 16) Flat flange for welding (slip on) · UNI 2280-67 PN 6 (DIN 2631 ND6) Weld neck flanges · UNI 2281-67 PN10 (DIN 2632 ND10) Weld neck flanges · UNI 2282-67 PN 16 (DIN 2633 ND16) Weld neck flanges · UNI 2283-67 PN25 (DIN 2634 ND25) Weld neck flanges · UNI 2284-67 PN 40 (DIN 2635 ND40) Weld neck flanges · UNI 2285-67 PN64 and UNI 2286-67 PN100 Weld neck flanges · UNI 2289-67 PN 6, UNI 2290-67 PN 10 and UNI 2291-67 PN 16 Weld neck flange collar to weld head · UNI 2292-67 PN 25 and UNI 2293-67 PN 40 Weld neck flange collar to weld head · UNI 2299-67 PN 25 and UNI 2300-67 PN 40 Weld Flange with support collar to weld head · UNI 6083-67 PN 25 – UNI 6084-67 PN 40 Flat plain slip-on flange · UNI 6088-67 PN 6 (DIN 2641 ND 6) Lap joint flanges · UNI 6089-67 PN 10 and UNI 6090-67 PN 16 (DIN 2641 ND 6) Lap joint flanges · UNI 6089 PN 10 Lap joint flanges in aluminium (DIN 2642 ND 10) · UNI 6091-67 PN 6 (DIN 2527 ND 6) Blind Flange · UNI 6092-67 PN 10 (DIN 2527 ND10) Blind Flange · UNI 6093-67 PN 16 (DIN 2527 ND 16) Blind Flange · UNI 6094-67 PN 25 and UNI 6095-67 PN 40 Blind Flanges · UNI 6096-67 PN 64 and UNI 6097- 67 PN 100 Blind Flanges · UNI 6098-67 PN 160 and UNI 6099-67 PN 250 Blind Flanges · UNI 6100-67 Flange Tolerances · UNI Flange Bolting Specifications UNI Flange Summary Chart Description Rated Pressure / Presión Nominal / Nenndruck (in bar) (1 bar = 14.5 psi) 1 2.5 6 10 16 25 40 64 100 160 250 320 400 DIN Blind Flanges 6091 6092 6093 6094 6095 6096 6097 60986099 Flat flange for welding (slip-on) 2276 2277 2278 6083 6084 Welding neck flanges 2280 2281 2282 2283 2284 2285 2286 Lapped flanges, Plain collars 6088 6089 6090 Loose flanges and rings for welding Loose flanges and rings with neck for welding Oval plain threaded flanges Oval flanges, with neck threaded Threaded flanges with neck 2253 2254 Long neck welding flanges Hubbed slip-on flanges for welding

SABS 1123 (SANS 1123) 600kPa Flange · SABS 1123 (SANS 1123) 1000kPa Flange · SABS 1123 (SANS 1123) 1600kPa Flange · SABS 1123 (SANS 1123) 2500kPa Flange · SABS 1123 (SANS 1123) 4000kPa Flange

· BS 4504 Flange Marking Requirements · BS 4504 Flange Tolerances · BS 4504 Flange Welding Ends & Flange Facings · BS 4504 Flange Flange Facing Dimensions · BS 4504 Drilling Details · BS 4504 Code 101 Plate Flange · BS 4504 Code 111 Weld Neck Flange · BS 4504 Code 112 Slip On Flange · BS 4504 Code 113 Threaded Flange · BS 4504 Code 105 Blank Flange (Blind Flange) · BS 3293 Welding Neck & Slip On Flange (150lb-600lb) · BS 10 Table D, Table E, Table F, Table H Flange

Specification/ Dimension of GOST flange (GB flange) GB9119，2—88GB9119，2—88inNPS 10kg=1.0MPaNPS 16kg=1.6MPaODDia of boltsHolesThicknessODdistance of boltsDia of boltsHolesThickness3/8DN10506014414DN109060144141/2DN15596514414DN159565144143/4DN201057514416DN2010575144161DN251158514416DN25115851441611/4DN3214010018418DN321401001841811/2DN4015011018418DN40150110184182DN5016512518420DN501651251842021/2DN6518514518420DN65185145184203DN8020016018820DN802001601882031/2DN10022018018822DN100220180188224DN12525021018822DN125250210188225DN15028524022824DN150285240228246DN20034029522824DN200340295228268DN250395350221226DN25040535526122910DN300445400221228DN30046041026123212DN350505460221630DN35052047026163514DN400565515261632DN40058052530163816DN450615565262035DN45064058530204218DN500670620262038DN50071565033204620DN600780725262042DN600840770362052 GOST 12820-80 Flat Flange (Slip On) · GOST 12821-80 Welding Neck Flange

AS/NZS 4331.1 (ISO 7005-1) PN10 & PN16 Australian Standard Steel Backing Flanges · AS 4087 PN16 & PN21 Australian Standard Steel Backing Flanges · AS 2129 TABLE D & TABLE E Australian Standard Steel Backing Flanges · AS 2129 TABLES D, E, F & H Australian Standard Slip on welding (SOW) & Blind Flanges

· KS B1503 (JIS B2220) 5K Flange · KS B1503 (JIS B2220) 10K Flange · KS B1503 (JIS B2220) 16K Flange · KS B1503 (JIS B2220) 20K Flange · KS B1503 (JIS B2220) 30K Flange · KS B1503 (JIS B2220) 40K Flange · KS D4308 Flange