韩日av不卡,亚洲一区二区三区影院,无套内谢孕妇毛片免费看看,一本一道综合狠狠

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