出口套美标石油套,API5CT套,API5CT美标套American Standard Oil Casing for Export, Cangzhou Xinsheng Oil Casing Production Technology Co., Ltd., American Standard Oil Casing, Oil Casing is mainly used in oil wells, geothermal wells, gas wells, geothermal heat exchange wells, coal mine backfilling, Coal Mine Mud backfilling, etc. (Manager Liu; 15132782988, QQ935385604) Oil Casing Bright Pipe and finished pipe steel grade is J-55, K-55, N-80, P-110, C. - 75, C-95, specifications are 219*7.72 oil casing, tubin |