Company Description
Qingdao N-star Petroleum Technology Co., Ltd. supply We hope have good cooperation with xxxxx、casing(API Spec 5CT、API Spec 5B)、seamless pipe、line pipe(API Spec 5L);drill pipe、drill collar(API Spec 7); rotary tables、drawworks、slush pump and fittings(API Spec 7K);oil drilling rig 、derrick、substructure(API Spec 4F);various kinds of valves for petroleum (API Spec 6D); pumping unit(API Spec 11E);pump(API Spec 11AX);pump rod、pump rod joint(API Spec 11B)。