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About product and suppliers:
        Alibaba.com offers 2,017 casing collar products. About 71% of these are mining machinery parts, 1% are pet collars & leashes. 

A wide variety of casing collar options are available to you, such as carbon steel, high manganese steel, and stainless steel. You can also choose from well drilling, ore mining. As well as from forging, casting. And whether casing collar is drilling tool, or drilling equipment. 

There are 2,017 casing collar suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of casing collar respectively. 

Casing collar products are most popular in Mid East, Southeast Asia, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 2,017 with Other, 718 with ISO9001, and 92 with ISO14001 certification.