Rm612, No. 1 Building, Guoyingyuan, Nanxiaojie, Xizhimen. Xicheng Area, Beijing, China, Beijing, Beijing, China,
Beijing Invention Biology Engineering & New Material Co., Ltd. (Beijing invention) is a joint venture(China and USA) set up in 1993 approved by Beijing Economy Trade Committee. invention graphite factory mainly develops produces middle---carbon ...
expandable graphite, graphite sealing ring, fireproofing graphite material, expanded graphite braided packing, expandable graphite yarns, flexible graphite sheet
