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About product and suppliers:
        Alibaba.com offers 2,055 casing collar products. About 72% of these are mining machinery parts, 2% are pipe fittings, and 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 drill collar, reamer, and drill pipe. As well as from casting, forging. And whether casing collar is api, din, or astm. 

There are 2,051 casing collar suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Chile, which supply 99%, 1%, and 1% 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 2,055 with Other, 679 with ISO9001, and 105 with ISO14001 certification.