Changzhou Tongchuang Composite Material Co., Ltd specializes in the SMCBMC materials and molding products and can traces back to 1989. We have already successively acquired ISO9001:2000 standard ***** SMC / DMC products can meet not only customers’ higher demands for chromatic aberration but also the performance of various types of electric and mechanical. We have abtained the UL Certification of the United States (certification number: E319234). And detecteded by by SGS (Switzerland General Standard) our product accoards with heavy metal content standard of European; tested by domestic detection authority our product is in line with the standard of export countries of destination such as France .