Hunan Hedun Engineering Tools Co.,Ltd.
Hunan Hedun Engineering Tools Co.,Ltd. |
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The company is mainly engaged in the production and operation of shield cutters and tunneling tools, drilling tools, mining and drilling tools, oilfield drilling tools, diamond drilling tools, engineering drilling tools, and hard alloy products; ... |
Quality ControlThe bearings and seals of our company's hobs are imported from Europe and the United States. Through strict control of tool mechanism design, material ... |