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About product and suppliers:
        Alibaba.com offers 87,195 drilled rock products. About 30% of these are mine drilling rig, 28% are mining machinery parts, and 12% are drill bit. 

A wide variety of drilled rock options are available to you, such as ore, water well, and coal. You can also choose from rotary drilling rig, core drilling rig. As well as from free samples, paid samples. 

There are 87,195 drilled rock suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of drilled rock respectively. 

Drilled rock products are most popular in Domestic Market, Mid East, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 24,269 with ISO9001, 23,527 with Other, and 2,164 with ISO14001 certification.