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

Al

鋁1.jpg


鋁4.jpg




鋁2.jpg    




Introduction

Purity: 99.999%

Shape:Block,   small cylinder, powder
Appearance:silver   white
Melting   Point:660℃
Density:   2.7g/cm3
Specification:   can be customized


Scan and pay attention to the public number