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Hejian Solidkey Petroleum Machinery Co., Ltd
We are specialized in tricone bits, PDC drag big diameter and customized bits. Our products mainly used drilling oil well, gas mine water subterranean heat, piling of foundation or construction. serving for contractors since 1983. The quality our is reliable prices reasonable, large quantity ...
Telephone：86-317-3184695Address：Yngguang, Cangzhou, Hebei, China
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