Hejian City Feilong Retop Rock Bit Manufacture Co Ltd, established in 1992 and located in Hebei Province of China, has evolved into an comprehensiveenterprise integrating production, R&D and distribution of tricone bits, PDC bitstrenchless drilling and rotary drilling tools. The subsidiaries include Beijing Feilong International Trade Co Ltd, BeijingSuperior Drilling Equipment Co, Ltd and Tricone Bits Machinery Co, Ltd. We arealways well serving customers from industries of oil gas drilling, mining exploration, HDD drilling, rotary drilling, with services covering a complete product line. Our company covers an area of 36 thousand Square meters, has 200 employees of which over half are technicians, equipped with state-of -the-art facilitiesof processing, production, testing and experimenting. We have obtainedcomplete quality assurance systems and has taken the lead to be certificated of ISO 9001, ISO14001, OHSAS 18001 and API.