الوصف

1) size:3/8''**0'' DN*0～DN***0 2) material: carbon steel：A**5 alloy：A**2 F*-F*-F*-F*-F**-F**-F**-F***-F***-F**-F**-F**-F*2 stainless steel：A**2 ******4H***4L***4N***4LN ******6H***6L***6N***6LN ******1H ******7H low_temperature steel：A**2 A**7 Grade L*-L*-L*-L*-L*-L*-L*-L8 high performance steel：A**4 F**-F**-F**-F**-F**-F**-F**-F**-F*0 3) pressure: America System:CLASS **0, CLASS **0, CLASS **0, CLASS **0, CLASS **0, CLASS ***0, CLASS ***0 European System:PN 6, PN *0, PN *6, PN *5, PN *0, PN *3, PN **0 4)surface types: America System:FLAT FACE(FF), RAISED FACE(RF), TONGUE(T), GROOVE(G), FEMALE(F), MALE(M), RING JOINTS FACE (RJ) Europe System:FLATE FACE, RAISED FACE, TONGUE, GROOVE, SPIGOT, RECESS, O-RING SPIGOT, O-RING GROOVE. 5) standard： GB/T********0 GB/T***6.*****0 GB/T***6.*****0 GB/T***6.*****0 GB/T***6.*****0 GB/T********0 SH/T********6 GD***0 GD******1 HG/T*********9 HG/T*********9 HG/T*********9 HG/T*********9 HG/T*********9 ASME B*6.*****9 EN**********7 EN**********4 BS*****3.*****9 BS*****3.*****9 AFNOR NF E************7 ISO**********2 AS********0 JIS B********4 4)application area: power, petroleum, papermaking, heat supply, oil, gas, shipping, Metallurgy Industry, etc. 5)Production Method: After forging, machining into finished product.