Beijing Zhongyan Special Engineering Materials Company subordinated to China Building Materials Academy. It is the original place of sulphoaluminate & # 65295; ferroaluminate cement (SAC / FAC) series which have won second-class prizes of China national invention awards. The National Building Materials Industrial Standards of SAC / FAC series have been issued. The relevant manufacture and technologies of SAC / FAC are researched and developed. More than 50 kinds of products are developed. All ...