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Company Profile
-Hejian Yinhai Rock Bits Manufacture Co.,Ltd established at 2008 is located in Hejian City, Hebei Province, China. -We are a 100% factory(manufacturer) of Tricone bits, PDC bits, Drag Bits, DTH hammer, Piling foundation Single roller cones & HDD rock reamers/Hole openers. Our drill bits based on high-tech skills and designs are used in exploitation of natural gas, crude oil, water well, geological exploration, HDD drilling and piling foundation.
