亚洲欧洲日产国码二区-jiz zz在亚洲-久久婷婷色综合老司机-日韩人妻无码AⅤ中文字幕

Zr

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Introduction
Purity:   99.2%-99.95%
Shape:Block,   Columnar
Appearance:silver   white,metallic luster
Melting   Point:1852±2℃
Density:   6.49g/cm3


Scan and pay attention to the public number