... (hard) foam polyurethane, epoxy resin, polystyrene, acrylic, cellulose acetate, ethyl cellulose and Bakelite resin, polyvinyl acetate resin, and foam fillers gun agent production. Especially ... polyurethane foam, epoxy resin polystyrene, acrylic acid, cellulose acetate, ethyl cellulose paint, phenolic plastics, polyvinyl acetate and foam leak sealing agent. It has good ...