One of the biggest Nation-owed factory of China,mainly sell seamless steel pipe,casing and tubing,also sell drilling pipe,drilling collar and any other petrolium equipments...

drilling pipe ,drilling collar,casing...

drilling pipe, casing, tubing, ERW pipe, pipe line, mud pump, drilling rig, drilling bit, sucker rod, pumping unit...

Dongying Hisin Petroleum Equipment Co. Ltd is located in the beautiful and fertile Yellow River xxxxx company covers an area about 180m2 with registered capital of 30 million yuan, and holds 70 machin...