亚洲精品中文字幕无码蜜桃,妺妺窝人体色WWW看美女,精品国产偷窥一区二区 ,寡妇把腿开大让我添添

Si

硅4.jpg


硅2.jpeg    


硅5.jpg




Introduction


Purity: 99.999%


Shape:granule,   flake, small round piece
Appearance:black gray, semi-metal,metallic   luster
Melting   Point:1410℃

Density:   2.33g/cm3

Specification


ProductPurity granularity/mmpackage
Granule99.9991-6100g,500g,1kg
99.99993-10100g,500g,1kg


Scan and pay attention to the public number