???Shijiazhuang Saiya Chemical Co., Ltd. (formerly known as Saiya Chemical Station established in 1996), located in Shijiazhuang, Hebei Province, is a comprehensive and scientific ferric oxide manufacturer integrating production, scientific research, sale and trade. Through a dozen years of hard working, we have accumulated a wealth of production experience and improved our testing system gradually, which ensured stable quality of products for domestic sale and export. In recent years, we have ...