... -160K STANDARD: ASTM, JIS,DIN. Stainless Steel Flanges Material:Stainless steel(304,304L,316,316L,317L,321 ... 904L)Stainless Steel FlangesFeatures:1)Type:Plate Flange,Flat Flange,Slip-on Flange,Welding Neck Flange,Long Welding ... ,SH3408, SH3409,HG/T21635 ,HG/T216313)Material:Stainless steel(304,304L,316,316L,317L,321,321H ... and satisfied for customers special requirements. welding stainless steel flanges