1.Commodity:weld neck flange 2.Size:DN15-1500 3.Pressure:0.25-250MPa 4.Seal face:FF,RF,MFM,TG,RJ 5.QS-9000,ISO9001:2000 weld neck flange CommodityWeld neck flange Carried standardASTM:304,304L,316,316L,316Ti,317,317L,321,321HJIS:SUS304,SUS304L,SUS316,SUS316L,SUS316Ti,SUS317L,SUS321,SUS321HDIN:1.4301,1.4306,1.4401,1.4435,1.4571,1.4436,1.4438,1.4541MaterialSS304,304L,316,316L,etc.SizeDN15— ...