Shijiazhuang joryork Imp.and Exp.Co., Ltd. specializes in producing heat-preserving building materials and fireproofing materials . We have our own R&D center and processing plant. Equipped with the most advanced facilities and technology in China, our company has many senior technicians and top managing talents. We are one of the leading key enterprises in researching, designing and producing refractory materials, thermal insulation materials and deadening. Our main brand products are divided into four catalogues, including plastic sponge, mineral rock wool, glass wool and polyurethane. Moreover, we are also dealing alumina silicate, calcium aluminates, PEF serials and other fields. Therefore, our products are widely applied in thermoelectricity, construction, smelting, petroleum industry, shipping industry, space industry and refrigeration industry. Our company has passed the evaluation of CE,ISO and SGS Certificates. As a designated enterprise for power and chemical indus