国家/地区 中国（2）
IPC部 C（2）
IPC大类 C25（2）
IPC小类 C25D（2）
IPC C25D003/12（2）
发明人 GUO C（2）
公开年 2023（2）
申请年
专利权人 GUANGZHOU UL.（2）

Neodymium-iron-boron plating trivalent black chromium and plating layer structure of graphene, has citrate pre-plating nickel layer that is prepared from inside to outside sequentially of substrate, and graphene sealing layer.

PENG C, LAI H, GUO C, LI X

Dull nickel-plated and graphene-enclosed plating structure for zinc alloy die-casting parts, has zinc-nickel alloy plating layer that is prepared from inside to outside sequentially zinc alloy base portion.

LAI H, CHEN K, GUO C