We are a leading manufacturer established in 1996 of API oli drill pipe, coalbed gas drill pipe, shale gas drill pipe, geothermal well, water well drill pipe and drill collar/kelly, heavy weight drill pipe and other related equipments and parts ect. We are one of the most earliest drill pipe factory of 11th authorized by API since 2010, full API authorized for : 1. Drill pipe body process of steel grade E,G,S 2. Tool joint process 3. Pipe and joint asscembly