青青青在线视频国产,亚洲熟妇无码一区二区三区,亚洲国产精品无码久久98,竹菊影视欧美日韩一区二区三区四区五区

SZSE:002741
Nickel Plating
Information
Characteristic:

Strong dispersibility in low current density area, excellent deep plating ability; Aesthetic and bright coating;

High impurity tolerability;
Stable plating solution and easy operation;
Suitable for work pieces with complicated shapes and high requirement on flexibility.

Application:

Applicable to barrel nickel plating process of electronic products and such hardwares as screws.

Advantage introduction:

JHD-201A: Commonly known as brightener. It is responsible for bright dipping and leveling. When the content in the plating solution is insufficient, the bright dipping is slow; when the content is too high, the area with low current density will become dark and the coating becomes brittle;
JHD-201B: Commonly known as auxiliary brightener, also known as softener. It eliminates the brittleness caused by the brightener and promotes uniform distribution of the coating. When the content in the plating solution is insufficient, the area with low current density will become dark and the coating becomes brittle. When the content is too high, the bright dipping may become slow;
NiW1: Wetting agent. It can decrease the surface tension of plating solution and avoid presence of pinholes and pockmarks.

Technical indicators:

Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
娇妻玩4p被三个男人伺候电影| 国产特级毛片aaaaaa视频| 桃花色综合影院| 香港三日本8a三级少妇三级99| 99久久精品国产一区二区三区| 两根大肉大捧一进一出好爽视频| 熟女人妻视频| 欧美重口另类在线播放二区| 性一交一乱一伧国产女士spa | 无码人妻丰满熟妇啪啪网站| 成人毛片18女人毛片免费| 天天干成人网| 国产xxxxx在线观看| 国产一区二区三区日韩精品| 任你躁x7x7x7x7在线观看| 国产精品久久久一区二区三区| 亚洲女人被黑人巨大进入| 色吊丝中文字幕| 久久天堂av综合合色| 人妻精油按摩bd高清中文字幕| 日韩精品一区二区三区视频| 日本肉体xxxx裸体137大胆| 狼色精品人妻在线视频| 三年中文在线观看免费大全| 手机在线看片| 少妇把腿扒开让我爽爽视频| 人人妻人人澡人人爽欧美二区| 中国丰满少妇人妻xxx性董鑫洁| 亚洲影院天堂中文av色| 精品深夜av无码一区二区| 成年免费a级毛片免费看| 手机在线看片| 18禁无遮挡免费视频网站| 无码人妻少妇色欲av一区二区 | 八区精品色欲人妻综合网| 爽爽精品dvd蜜桃成熟时电影院| 色老板美国在线观看| 精品一卡二卡三卡| 国产欧美综合一区二区三区| a片免费视频在线观看| 亚洲 小说 欧美 激情 另类|