Hengtong Polyurethane Co., Ltd. is located in Gansu Province, Lanzhou City, Gansu Province Qilihe Xijin Road 819 Gansu International Electrical Plumbing City 3-103, company full use of advanced technology formula to produce fluorine-free environmentally friendly products. Polyurethane foam is a diisocyanate, polyether (polyester) polyol, blowing agents, flame retardants as the main raw material, adding a small amount of additives, foam equipment automation curing reaction of polyurethane foam produced during the forming process separate closed-cell structure, and therefore have excellent insulation properties, it has been widely used in many fields, since the material has a very low thermal conductivity, excellent mechanical properties, excellent fire resistance, low water absorption, and.. (more>>)