The detailed information about our product: Type: API Vertified SSAW steel pipe Brand: BoAi Technics : Double-side spiral submerged ARC welded Steel grade : Q235, Q345, J55, X65,X70 Connection : Welding OD : 219mm-3000mm thickness : 5mm-30mm Standard : ASTM / ANSI / DIN / ISO / GB / JIS / BS Shape : Round Capacity: 150,000 ton per year Payment terms : T/T with deposit or LC at sight 25-30days mer's requirement . Application : petroleum, natural gas ,coal gas ,coal slurry distribution ; tubing and casing , auto transmission , construction , heating , power, piles and other fields . Remarks : Special design available according to customer's requirement All the production process are made under ISO9001:2000 strictly For Steel products enquiry, pls contact Zora, : sales10(at)shinestar-steel(dot)com, Skype: zora125 www.shinestar-steel.com