国家/地区 中国（2）
IPC部 C（2）
IPC大类 C04（2）
IPC小类 C04B（2）
IPC
发明人 ZHANG H（2）
公开年 2023（2）
申请年 2023（2）
专利权人

Chromium reducing type cement grinding aid useful in building material, comprises grinding aid shell, reducing agent, protective agent, penetration enhancer, and water, where reducing agent is sodium thiosulfate.

LIU Y, ZHANG X, ZHANG H, ZHANG Z

Double-faced cavity lightweight high-strength assembled wall useful for prefabricated building, has interface layer, heat preservation layer, crack-proof layer and facing layer, where layers are connected by base cloth and heat preservation layer comprises e.g. cement, modified polystyrene and water.

LIN P, CHEN B, ZHANG W, ZHANG H, ZHANG Y