无码日韩精品一区二区免费暖暖_日韩人妻无码精品久久_狂躁美女大bbbbbb视频u_亚洲精品一区二区三区在线观看_自拍偷自拍亚洲精品播放

Characteristic：

Colorless or yellow transparent liquid with irritating odor and strong acidity; At 390~407 ℃, it decomposes into SnSO₄ , while 407- 425 ℃, it decomposes into SnO.

Application：

It is used for tin electroplating of such products as electronic elements, PCB, IC, lead frame, wire rod and tinplate.

Advantage introduction：

High purity electrolytic tin ingot used as the raw material;

Advanced production process and strict control over quality, contributing to stable product quality;

High tin content, low content of free acid and low content of organic impurities and metal impurities;

Stable bivalent tin, with strong oxidation resistance.

Technical indicators：