... , liquid, and electricity; 2. OD: 21.3-457.2mm api 5l line pipe x421.Commodity NameERW carbon steel pipe / line pipe2 ... . Also for chemical industry, building structure and pile driving, etc.12. Export to these CountriesCanada, USA, Peru, Chile, Colombia, Brazil, India ... , Kenya, South Africa, Spain, Italy, France, England, Belgium, etc13.CertificatesAPI 5L PSL1,PSL2 , API 5CT, ISO ,CE