国家/地区 中国（3）
IPC部 B（3）
IPC大类 B02（3）
IPC小类 B02C（3）
IPC B29B013/10（2）
发明人
公开年 2022（3）
申请年 2021（3） 
专利权人

Grinding device for grinding resin raw material in graphene, has sieving mechanism comprising sieve plate that is connected with inner wall of tank body by hinge, where middle of plate is concave and is hinged and fixed box elastic rod.

HUANG J

Production device for graphene color master batch of PVC material, has shell whose inner side wall is fixedly connected with inclined plate, where inclined plate is surface with movable groove that is installed with spring.

HAN R

Repairing agent for boiler flue gas desulfurization tower, includes multi-layer composite coating comprising wear-resistant layer, bonding layer, and anticorrosive layer which are sequentially coated on inner wall of desulfurization tower, and anticorrosive layer attached to inner wall.

WANG Y, SHANG Y, YANG Y, SONG X