... customer's requestProcess methodspiral weldedStandardsAPI 5L, API 5CT, ASTM, ANSI, ISO9001, DIN, ENApplication rangeUsed For Gas, ... of your enquiry.Company infoWe ,Tianjin Arcelormittal Steel Trade CO.LTD. is a professional and ... , for carbon steel welded pipes and galvanized steel pipes, angle steel and other sorts of steel. our advantage ... our factory at any time ASTM A335 P91 Seamless alloy steel pipe