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Urumqi Siruite Mechanical Equipment Co.,Ltd
URUMQI SIRUITE MECHANICAL EQUIPMENT CO., LTD
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borehole drilling bit
4 1/8 IADC517 borehole drilling insert tooth rotary drill tricone bit
borehole geological drilling PQ HQ exploration coring drill bit impregnated core bit
well borehole drilling 5 blades 311mm PDC bits for soft formation
5 inch QL50 DTH hammer for water borehole drilling and coal mining
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