Oilfield Equipment Oil Field Drilling Supply Jianxin Petroleum Co, Ltd specializes in different kinds of oilfield equipment including drill pipe & collar, casing and tubing pipe, line workover production equipment, which meets the rigorous industry standards API ISO. As a global ...

Henan Province Traffic Prestressed Co., Ltd established in 2000. with 2 0 years' industrial experience, it has developed into a comprehensive enterprise which engages the prestressing technique research and development, production service system, engineering design construction. ...