circulating sub

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[CN] Mudanjiang Dongxu Machierny Co.,Ltd [Manufacturer]
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Business Overview: Mudanjiang Dongxu Machinery Co.,Ltd is a private factory collecting with research, production, sales, service.our factory has been in business for over 7 ye...

[CN] Hei Longjiang North Shuangjia Drilling Tools Co., Ltd. [Manufacturer]
Key Products/Services:
Business Overview: 　　　We specialize in manufacturing all kinds of drilling stabilizers, hydraulic adjustable stabilizer, roller reamer, non-magnetic drilling stabilizers, s...

[CN] LUHAI Petroleum Equipment Co., Ltd [Manufacturer]
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Business Overview: LUHAI start in the new era of economic globalization and China's petroleum and petrochemical industry rapid development. We follow the business philosophy o...