国家/地区 中国（3）
IPC部 C（3）
IPC大类 C25（3） C23（2）
IPC小类 C25D（3）
IPC C25D003/56（2）
发明人 CHEN J（3） GUO C（3） LAI H（3）
公开年 2021（3）
申请年 2021（3） 
专利权人 LBS GUANGZHOU CO LTD（3）

High corrosion resistant coating structure of galvanized iron alloy of cast iron piece, has silane chromium-free passivation layer that is formed by solvent silane passivation agent.

CHEN J, GUO C, LAI H

Coating structure for aging-resistant zinc-nickel alloy silane-free passivation, comprises aluminum alloy substrate, and chemical deposition zinc layer, chemical nickel plating layer, and silane chromium free passivation layer.

CHEN J, GUO C, LAI H

Protective layer structure of pearl copper coating coated with hydroxyl graphene electrophoretic paint, comprises steel base body from inside to outside orderly preparing watt nickel plating layer.

CHEN J, GUO C, LAI H