中文字幕人成乱码在线观看,在线精品观看,日本精品久久久久久久,久久视频在线视频,日本护士在办公室里被躁

ZnSn

鋅錫靶.jpg



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

Proportion: 50/50,wt% or customized

Purity: 99.95%-99.995%

Shape: planar, rotary

Appearance: silver

Density: depends on proportion

Specification: customized


Scan and pay attention to the public number