... SG-5, SG-8Quality standard: GB5761-93Properties and features:PVC resin is with the Carbide base, ... : Films, raincoat, industry packing, artificial leather, hose and shoe-making material, etc.2. SG-5: Rigid ... plate, gramophone record, value and welding rod, PVC pipes, PVC windows, doors , ... etc.3. SG-8: Good hardness and high strength, mainly used for tubes and pipes. Quality Index:ItemsSG ...