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Changsha Tianhe Drilling Tools and Machinery Co.,Ltd

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reverse circulation bits
Specification: 143 reverse circulation bits
Detail: Certificate:ISO9001:2008.SONCAP Applicable hard very hard and medium soft rock formation Good flushing effect to ensure high drilling rate. Strict quality warranty and conpensation rules. Bit face:flat,convex,concave But...


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Changsha Tianhe Drilling Tools and Machinery Co.,Ltd All Products >> drill bit

Changsha Tianhe Drilling Tools and Machinery Co.,Ltd

All Products >> drill bit