Hejian Zhongcheng Bit Manufacture Co.LTD. was established in 1997. It is a privately owned and proudly company. We have grown to become a leading manufacturer of tricone bit and PDC bits and supplier of high quality drilling tools & equipment, and we excel in designing, manufacturing, and distributing construction industry drilling tools as well as finding custom solutions to complex problems. 

SuRuiFeng a registered brand -"SRF"brand bits includes