国产午夜精品一区二区,午夜福利电影,午夜福利视频,久久午夜无码鲁丝片午夜 -国产18禁黄网站免费观看_WWW夜片内射视频日韩精品成人_国产在线观看成永久视频

This additive is a pinkish liquid, used in the electrolytic coloring process after the anodization of Al profiles. By using this agent, it is easy to control the Rose Gold coloring processing with minimum color difference and better result in terms of abrasion-resistance, erosion-resistance and weather-resistance than that of the conventional champagne-colored ones.

1. Bath Composition (For make-up):

SN-4
H₂SO₄
Deionized Water

10g/L
15g/L
Remaining Amount

2. Processing Parameters:

SN-4
Free H₄SO₄
Temperature
Coloring Voltage
Time

8-12g/L
15-20g/L
20-30℃
11-14V
2-10min

3. Bath Maintenance:

(1) Analyze the contents of SN-4, free H2SO₄ and make compensation in time.
(1) SN-4 Consumption: 3-5kg/t for production of light colored product ; 8-10kg /t for production of dark colored product
(2) Since Rose Gold coloring process can only be deepened and not it`s reverse, its operation has to be handled by qualified personnel with great care.