... .3 4.SGS inspection 5.Mill supply 1.Commodity NameSpiral steel pipe2.StandardSY/T5037,SY/T5040,ASTMA252,EN10217,EN10219,GB/T9711 ... .1,API 5L3.Outer Diameter219.1—3600 mm4.Wall Thickness6mm—30 mm 5.Length3—20 m6.PackingIn bulk7.Payment ... , Belgium, etc13.CertificatesAPI 5L PSL1,PSL2 , API 5CT, ISO ,CE Large Size SSAW Spiral Seam Steel Pipe