国家/地区 中国（2）
IPC部 F（2）
IPC大类 F26（2）
IPC小类 F26B（2）
IPC
发明人 ZHANG L（2）
公开年 2022（2）
申请年 2021（2）
专利权人

Special high activity tricalcium phosphate with enhanced whiteness brightness of fluorescent paint comprises superfine tricalcium phosphate powder, fluorescent powder, organic high temperature resistant powder, tackifier and preservative.

ZHANG L, XU J

Vacuum freeze drier for intermittently defrosting, has left and right water collecting cabs that are connected with exhaust pipe, exhaust pipe that is connected with air pump, and are connected to drain pipe.

ZHU B, ZHANG L, ZHU L