... (35#),Ck45(45#),St52(16Mn),CH8Ni9Ti35CrO10)Casing pipe:J55,N80EndBE and Plain end with pipe capsLength1-12m as clients’ requirementTechniqueCold rolled, hot ... Co., Ltd. Major steel production of seamless steel pipe, straight seam steel pipe, spiral steel pipe, galvanized steel pipe, steel sheet, strip, valves and so on. Committed to ...