1.new manufacturing process 2.imported high quality diamond 3.cost effective drill bit SpecificationsJSC-class diamond drill bit with a new manufacturing process, the performance of large diamond play. The selection of large size-class products imported high quality diamond,...

1.raw materials, long life, beautiful appearance. 2.common alloy drill bits Specifications of bit Use high-quality carbide and special geological tube alloy bit as raw materials, long life, beautiful appearance. The main products are common alloy drill bits and pieces, including...

1.high quality diamond bit 2.suitable for all kinds of strata 3.high cost effective JSA-class diamond bit to meet the demand of the domestic market practice, the use made of quality diamond products, floor work for the 5-6mm, product works excellent, high quality, suitable for...