... : A25, A42, B42,X42,X46,X52 seamless steel pipe for coupling stock Typeseamless steel pipe for coupling stockBrand NameTMSSPStandardAPI 5CT/5LGradeA25, A42, B42 ... :2000 strictly.Welcome your freely contact.Regards,Chris LiuTianJin Master Seamless Steel Pipe Co., LtdMob:+86-22-13652086027 +86-22- ... 13612025515Tel:+86-22-88610332,28619678Fax:+86-22-28619678 seamless steel pipe for coupling stock