D-08 china clastic, international city, dubai, UAE,062465
Hejian Yinhai Rock Bits Manufacture Co., Ltd is a professionalTricone maker with more than 10 years experience. Our productis from 61/2\\\\" to 20\\\\" IADC code 517, 537, 617, 637,515.Our bits holds very good reputation in water drilling market ...
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