Xuchang SHIYU insulation materials co., LTD., established in 1996，we located in XuChang city yan’an Road. XuChang is a well-known historical city in North of China。We insist on the running idea of "high-quality good-service" production and management. We passed ISO9001:2008 certified. product insulation system for the United States UL recognized B / F/H class insulation system, through…