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Changsha Chaojingang Machinery Manufacturing Co., Ltd.

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City:changsha

Country/Region:china

Contact Person:MrWilson Chen

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JIS Standard T38 DTH Drill Pipes Alloy Steel Tapered Drill Rod Heat Insulation

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Product Description Advantages: 1. Our products can match over 95% against the original products. 2. High quality raw material, with premium hardened ...

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