CIR Hammer and Bit - Changsha Dth Drill Construction ...
China CIR Hammer and Bit catalog of CIR90-90mm High Air Pressure Rock DTH Top Hammer Bits Professional Drill Bits for Water Well Drilling and Mining1 - 499 Pieces$70.00> =500 Pieces, Low Air Pressure CIR90-110mm Rock DTH Hammer Bits for Water Well Drilling and Mining provided by China manufacturer - Changsha Dth Drill Construction Machinery Co., Ltd., page1.
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