... 4.SGS inspection 5.Mill supply 1.Commodity NameSpiral steel pipe2.StandardSY/T5037,SY/T5040,ASTMA252,EN10217,EN10219,GB/ ... and natural gas , water and gas, mineral slurry. Also for chemical industry, building structure and pile driving, etc.12. Export ... Kenya, South Africa, Spain, Italy, France, England, Belgium, etc13.CertificatesAPI 5L PSL1,PSL2 , API 5CT, ISO ,CE API 5L PSL2 Spiral Seam Steel Pipe