Oil & Energy - , He Bei Sheng, China
We are one of largest manufacture in Asia, and we are specialized in PDC Drill Bits and Roller cone Bits.We are a suppliers of CNPC , Sinopec, CNOOC and famous customers from all around the word.1.The manufacture is 40,000 square meters, and one of the biggest in the Asia.2.Excellent design team, also provide OEM&ODM.3.API, ISO Certification.4.A part of research and development in Beijing.Welcome to contact me and visit our manufacture !!!