日本aa大片高清视频,国产一区二区电影院,97人洗澡人人澡人人爽人人模,精久久久久久久久竹菊

MoNb

鉬鈮1.jpg


Introduction: mainly used in the coatings of touch screen and display, solar thin-film batteries

Proportion: 90/10,wt% or customized

Purity: 99.95%

Shape: planar, rotary

Appearance: silver white

Density: depends on proportion

Specification: customized


Scan and pay attention to the public number