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Changsha DTH Drill Construction Machinery Co., Ltd.Drill Bit Pr54 RC Reverse Circulation Hammer Bit for Hard Rock Drilling 136'' 140'' 143'' 146''inch
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Changsha Chaojingang Machinery Manufacturing Co., Ltd.3128308990/3128 3089 90/Feed Beam/Drilling Rig/Mining Machinery Parts
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Hunan Hengan Weiye Metal Products Co., Ltd.3128082907/3128 0829 07/Check/Drilling Rig/Mining Machinery Parts
Changsha Shante Mine Equipment Co., Ltd.