国产又粗又黄又爽_天天射日_国产网红在线_老女人一区_开心激情网五月天_男人天堂网av_日韩中文字幕免费观看_日韩片在线_日韩一级片在线播放_日韩欧美高清在线观看_夫妻av_尤物在线播放

This product is a white powdery solid, capable to make an even, refine sandy-like surface on the aluminum profile and characterized by its fast speed and minimum aluminum consumption.

1. Bath Composition (For make-up):

JH-C1
Ammonium hydrogen fluoride
Water

15-25g/L
15-55g/L
balance

2. Processing Parameters:

F-
Temperature
Time
 

25-35g/L
30-50℃
3-6min

3. Bath Maintenance:

(1) Analyze bath liquid each shift and make compensation of ammonium hydrogen fluoride and JH-C1 by the ratio of 8:1-2.
(2) During the production process, precipitate of aluminum fluoride may occur,bath liquid should be filtered regularly.