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About product and suppliers:
        Alibaba.com offers 5,923 a digester products. About 60% of these are biogas, 6% are waste management. 

A wide variety of a digester options are available to you, such as free samples, paid samples. 

There are 5,923 a digester suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of a digester respectively. 

A digester products are most popular in Domestic Market, Africa, and North America. 

You can ensure product safety by selecting from certified suppliers, including 1,340 with ISO9001, 619 with ISO14001, and 500 with Other certification.