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About product and suppliers:
        Alibaba.com offers 126,122 used oil products. About 10% of these are machine oil purifier, 1% are biodiesel, and 1% are waste management. 

A wide variety of used oil options are available to you, such as heating oil, vehicles, and railway. You can also choose from iso 14214a, astm d 6751, and din e 51606. As well as from b100, b99. And whether used oil is free samples, or paid samples. 

There are 123,650 used oil suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 97%, 1%, and 1% of used oil respectively. 

Used oil products are most popular in Domestic Market, Southeast Asia, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 44,154 with ISO9001, 24,295 with Other, and 5,647 with ISO14001 certification.