... also be called metal silicon ,is silver grey or black with metallic luster. It has the function of high melting ... 50.3 Company ProfileOur company was registered in Hong Kong with the head office in mainland China: Huizhou city, Guangdong province, which ... nodulizing agent, inoculant and coke, etc. Besides, we also cooperate with some research institutes in domestic, such as Analytical &Testing Center ...