Hejian City Feilong Retop Rock Bit Manufacture Co., Ltd specializes in the designing, manufacturing?marketing and servings the high performance diamond bits, tricone bits and drilling tools which used in petroleum industry.  Feilong Retop takes" the fastest penetration and the best performance" as bit designing guideline to manufacture high performance bits with advanced equipment and technologies under the strict quality check and assurance procedures according to bit designing computer program and CAD with which combines the knowledge of rock mechanics, site experiences, fluids dynamics, etc.
   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 knowledgeable service team will ensure the superior performance of our products in both the domestic and international markets.
  Company established a series of policies for personnel resource. Thus company collected a group of senior engineering experts and specialists who have the spirit of hard working, activeness, national dignity and confidence. Experts and specialists have made the products keeping ahead in domestic, and catching up with the international leading products. Many worldwide records have been created or updated by our products.
? quality first, consumers foremost ? is our service pursuit. By adopting advanced design technology, manufacturing process and strict quality control, we assure the products the best quality, and then our company will always improve and innovate to satisfy the different needs for all of the users in the entire world.