免费人成视频x8x8-久久九九精品国产综合喷水-无码成a毛片免费-亚洲人成色777777精品音频

MgF2

氟化鎂1.jpg  


氟化鎂3.jpg


氟化鎂2.png

Introduction
Purity:99.99%
Shape:powder,solid
Appearance:white
Melting   Point:1261℃
Density:  3.148g/cm3


Scan and pay attention to the public number