欧美亚洲一区-日韩一区二区三区视频-欧美精品一二三区-免费一区二区-蜜桃视频网址-91丨porny丨中文-97黄色-成人涩涩视频-波多野结衣黄色片-亚洲性综合-欧美理论在线观看-美女污污网站-欧美亚洲一级-午夜欧美福利-精品国产丝袜一区二区三区乱码

Characteristic：

Alkyl sulfonic acid system adopted, friendly operation environment, with stable system;
Simple composition, easy operation, easy for site production and management;
Special additive used, contributing to dense and uniform crystals of the coating, with good welding performance;
Low content of foams, easy to wash, strong ability to resist high temperature discoloration.

Application：

3471 is a matte tin potion exclusively designed in accordance with the characteristics of continuous plating. It can ensure dense and uniform tin coating while ensuring the electroplating efficiency, thus ensuring excellent ability to resist discoloration as well as excellent weldability of the product. It is applicable to roll-to-roll continuous matte tin plating process.

Advantage introduction：

Technical indicators：