Branch Snyder Department of International Ltd. Shenzhen-Electronic Technology Co., Ltd. - The Department of Electronic Technology Company is a professional custom single-sided, double-sided, 2-40 storey density multilayer professional supplier, to provide customers with high-precision high quality Shenzhen board, quality assurance, reasonable prices. Gold-plated plate process: Acid degreasing → washing → microetch two overflow → two overflow washing → pickling → plating → washing → nickel two overflow overflow → 2 → washing → gilded gold recovery The difference → 2 overflow washing tin plate and gold plate on the process: tinplate tinning after copper, gold plate is in the nickel plating gold-plated copper 

palabras clave: Difference, the resist layer, use,