Tianjin AoKai Oil Tools Co. Ltd. is located in Dagang oilfield, city with convenient transportation. We can supply well screen pipes, petroleum sand control screens, sieve plates, water and gas strainers, nozzles, drill tools, casing, tubing collars professional technology. Since the ...

Jiande Xingming Special Foundry Co., Ltd. was established in 1985. Our factory covers thirty-eight thousand square meters. We have a production workshop of nearly twenty meters and product quality inspection center six hundred are high-tech enterprise Zhejiang Province, with number ...