... ., Ltd , specilizes in trading and exporting kinds of steel pipes.We have export to many countries such as America, ... and so on.We can supply kinds of pipes:1)Carbon steel pipes: GB8163/1999 20#, ASTM A106 GrB, ASTM ... A53 GrB,DIN17175 ST 45.82)Alloy steel pipes: 15CrMoG,16Mn,Q235B,ASTM A209,ASTM A200 T11, ... T22.3)Stainless steel pipe: 304L,316L,316.4)API 5CT: J55 ...