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836A hide glue appearance: yellow uses:hardcover casemaking,hardcover book,hardcover PU,cloth booking,gift box,Bank notes, special papers, abrasives, match heads production, furniture restoration, gummed paper, as well as raw material for other glues. speed:change the speed acoording to different use condition machine: semi automatic boxmaking machine,semi automatic hardcover machine,hot melt adhesive machine Glues of animal origin are almost 100% recyclable and biodegradable and are therefore environmentally friendly. They are derived from collagen, a protein constituent of skins and connective tissues and are principally of cattle origin. The manufacturing process consists essentially of the following steps: washing the raw materials, soaking in a lime solution (which weakens the chemical bonds), the extraction of the gelatinous material, gelling and finally drying. The resulting glue can be in powder, granules or pearls and has an indefinite shelf life if kept in a cool dry place. for the details of thetechnical parameter and method of application,please contact our salesman,we will provide service to you as soon as possible.