Why do we dare to say that our kelly bar are the best in China? First of all, it is because of our strict control on the material. When it comes to materials, we never cut corners. The first two sections of kelly.
[pdf] BOP Products, LLC is a licensed manufacturing facility in Houston, Texas. We manufacture, repair, and service oilfield equipment such as blowout preventers, ram blocks, and blowout preventer replacement parts.
[pdf] Haungshi Star Trip Machinery manufactures drilling rigs, air motors and air winches and offer explosive and financial services. We produce drilling rigs for quarrying, mining and civil construction, vane type, piston type air motors as well as air winches.
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