Technique Seamless Place of Origin China Specification 139.7mm*9.17 Grade P110HC Outer Diameter 139.7mm Length R3 Thickness 9.17mm Usage Oilwell drilling 139.7mm*9.17mm P110 LTC, STC, BTC casing 139.7mm*9.17mm P110 LTC, STC, BTC 5 1/2" 20ppf P110HC casing
