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About product and suppliers:
        Alibaba.com offers 32,882 diamond core drill products. About 56% of these are drill bit, 1% are drilling machines. 

A wide variety of diamond core drill options are available to you, such as free samples, paid samples. 

There are 32,667 diamond core drill suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Japan, which supply 98%, 1%, and 1% of diamond core drill respectively. 

Diamond core drill products are most popular in North America, Domestic Market, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 12,399 with ISO9001, 3,894 with Other, and 803 with ISO14001 certification.