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We specialize ourselves in researching and production of rock drilling bits, mainly including tricone bits, PDC bits, drag bits, HDD hole opener.

Hebei Goldman Petroleum Machinery Co., Ltd

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We specialize ourselves in researching and production of rock drilling bits, mainly including tricone bits, PDC bits, drag bits, HDD hole opener

Hebei Goldman Petroleum Machinery Co., Ltd

Contact Now

drill bit

Hebei Goldman Petroleum Machinery Co., Ltd

Contact Now

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