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

ZnAl

鋅鋁靶.jpg


Introduction: widely used in the coatings of architectural glass, automotive glass, solar photovoltaic

Proportion: 58/2,wt% or customized

Purity: 99.95%-99.995%

Shape: planar, rotary

Appearance: silver white

Density: depends on proportion

Specification: customized


Scan and pay attention to the public number