The method of JX--Ⅱ sealing material for hydraulic biogas digesters and its mixture,the very strong performance resistance to corrosiveness and reform of GB Three layerc Grieshoch and Four Layerc, Sizes is put forward first in the world in the paper ,this is will play avery important role in improving the quality of hyd rauluc biogas d igesters,promoting the development of hydraulic bipgas in China

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