Hejian City Feilong Retop Rock Bit Manufacture Co., Ltd specializes in the designing, manufacturing, marketing and serving the high performance diamond bits, tricone bits and drilling tools which used in petroleum industry.

Our bits named FL, which size ranging from 2 7/8'' to 17 1/2''. All the products are made in accordance with the API spec7-1, meanwhile our quality ensure system award the ISO9001 certificate. Furthermore, the experienced and knowlegeable service team will ensure the superior performance of our proucts in both the domestic and international markers.