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Hebei Ruishi Bits Manufacturing Co., Ltd
Hebei Ruishi Bits Manufacturing Co.,Ltd was established in 1990. We owns full production lines of PDC bit and Roller core bit. Ruishi strictly comply with API Spec7-1 in the process of production.Ruishi owns full production lines of PDC bit and Roller core bit, which is covering all sizes of the 2”--26” bit.
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