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About product and suppliers:
        Alibaba.com offers 11,924 crude oil refinery for sale products. About 74% of these are oil pressers, 13% are machine oil purifier, and 1% are crude oil. 

A wide variety of crude oil refinery for sale options are available to you, such as free samples. 

There are 11,817 crude oil refinery for sale suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Malaysia, which supply 93%, 4%, and 1% of crude oil refinery for sale respectively. 

Crude oil refinery for sale products are most popular in Africa, Southeast Asia, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 3,694 with Other, 3,005 with ISO9001, and 373 with ISO14001 certification.