国家/地区 中国（3）
IPC部 C（3）
IPC大类 C25（3）
IPC小类 C25D（3）
IPC C25D005/10（3）
发明人 GUO C（3）
公开年 2020（2）
申请年 2019（2） 
专利权人 GUANGZHOU UL.（3）

High corrosion resistance zinc cobalt alloy coating structure of aluminum alloy piece, has trivalent chromium passivation layer and hydroxyl graphene sealing layer which are prepared in turn from inside to outside of substrate.

CHEN M, LAI H, GUO C

Galvanized and hydroxyl graphene-sealed coating structure of cast iron piece comprises cast iron piece base body, acidic zinc plating layer, basic zinc plating layer, trivalent chromium passivation layer and nano graphene sealing layer.

GUO C, WU M, LAI H

Roller plating bronze and hydroxyl graphene closed plating layer structure comprises metal substrate, copper plating layer, bronze plating layer, and bronze plating layer sequentially prepared from inside to outside on metal substrate.

GUO C, CHEN M, LAI H