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About product and suppliers:
        Alibaba.com offers 547 biogas holders products. About 67% of these are biogas, 1% are other rubber products, and 1% are pressure vessels. 

A wide variety of biogas holders options are available to you, such as free samples. 

There are 547 biogas holders suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of biogas holders respectively. 

Biogas holders products are most popular in Africa, Domestic Market, and Eastern Asia. 

You can ensure product safety by selecting from certified suppliers, including 46 with ISO9001, 26 with ISO14001, and 15 with OHSAS18001 certification.