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About product and suppliers:
        Alibaba.com offers 1,810 heavy duty bits products. About 9% of these are drill bit, 3% are construction machinery parts, and 3% are mining machinery parts. 

A wide variety of heavy duty bits options are available to you, such as screwdriver set, core drill bit, and center drill bit. You can also choose from tungsten carbide, high speed steel, and high carbon steel. As well as from metal drilling, masonry drilling, and well drilling. And whether heavy duty bits is api, or astm. 

There are 1,810 heavy duty bits suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of heavy duty bits respectively. 

Heavy duty bits products are most popular in Southeast Asia, Domestic Market, and South Asia. 

You can ensure product safety by selecting from certified suppliers, including 467 with ISO9001, 357 with Other, and 28 with ISO14001 certification.
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