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Urumqi Siruite Mechanical Equipment Co.,Ltd
URUMQI SIRUITE MECHANICAL EQUIPMENT CO., LTD
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rock roller bit
rock roller bit
311mm HJ series ZJ king dream rock roller carbide tricone bits for petroleum and water borehole drilling
API certificate 12 1-2 well drilling equipment TCI rotary rock drill roller cone bits
6 3-4 inch 171mm borehole well water drilling button rock roller bits drilling machine
3 7-8 IADC 637 inch borehole opening geotechnical exploration well water drilling tricone bits
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