... .Length:3-20m 5.Best quantity,Competitive price 1.Galvanized welded steel pipe(ERW Steel pipe) 2.OD:21.3-610mm 3.W.T:1 ... , etc.12. Export to theseCountriesCanada, USA, Peru, Chile, Colombia, Brazil, India, Malaysia, Singapore, Vietnam, Australia, Myanmar, Kenya, South Africa, Spain, Italy ... , England, Belgium, etc13.CertificatesAPI 5L , API 5CT, ISO ,CE Galvanized welded Steel Pipe