API 5CT K55/J55/L80/P110 Oil Well Seamless Steel Tube CANGZHOU GUANGQUN METAL PRODUCTS CO., LTD. Base Info Type:SeamlessTechnique:Hot RolledMaterial:Carbon SteelSurface Treatment:BlackUsage:Oil,Gas DrillingSection Shape:Round Description Pre:API Casing and Tubing K55 Pipe Next:ASTM SUS 2b Ba 304 Stainless Steel Coil /Cold Rolled Stainless Steel Coil