24K GOLD Plating

24K GOLD Plating 翻译：Gold plating with 50u nickel underplating overall 24k gold plate有用吗 小米4 的24k gold sticker贴在哪里? 英语翻译PLATING:SPRING CONTACT PLATING TO BE TESTED ON A LOT BASIS PER 069-7497BLOCKER:NO BLOCKER ALLOWEDUNDER PLATING:1.2 UM NICKEL MINIMUM,ALL OVEROVER PLATING:0.8 UM GOLD MINIMUM,ON END OF SPRING CONTACTOVER PLATING:3-5 UM TIN,LOCAL TO PADCONT micron 23K gold-plated under-plating 手表后面有:24k gold plated water resistant是什么意思啊? 24k gold sticker怎么用小米2S手机里送的, 网购时的赠品——24k Gold Sticker,是什么东西?怎么用? 小米24K gold sticker贴在手机哪里效果好 gold gold Gold Gold Gold AMP端子 Plating A 、Plating B、Plating 有什么区别? 24k gold over sterling silver是什么意思,和24k gold的有什么区别?在老外的地盘看中了条项链,上书24k gold over sterling silver,到底是啥意思..还是不是纯金咩?里面有木有参银?戴了以后会不会变黑