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

Characteristic：

Dark green liquid, water solution, acidity.

Application：

It is widely used for electroplating in such industries as automobile, aerospace, PCB, electronic elements, electroforming and connection terminal.

Advantage introduction：

Low content of impurities, with industry-leading indicator;

Unique advanced production process and strict control over the production process, contributing to stable product quality;

Low stress in the coating.

Technical indicators：