... Spiral steel pipe .Commodity Namespiral welded steel pipe2.StandardAPI 5L, API 5CT,ASTM A53 ,ASTM A252, EN10217,EN102193.Outer Diameter219 ... 's requirements10.MaterialA53(A,B),Q235B,Q345B,X46,X52,X60,X70,X80,S235JRHetc11.UsageFor linepipe in petroleum and natural ... , South Africa, Spain, Italy, France, England, Belgium, etc13.CertificatesAPI 5L , API 5CT, ISO ,CE Spiral steel pipe API 5L X65 PSL1 PSL2