国产精品亚洲一区二区三区_污污污污污污污网站污_免费无码肉片在线观看_无码国产69精品久久久久孕妇_亚洲人成电影网站色

Ta


鉭3.jpg    


鉭1.jpg


鉭2.jpg


Introduction
Purity: 99.95%
Shape:Block,   Columnar, powder
Appearance:silver   white,metallic luster
Melting   Point:2995℃
Density:   16.654g/cm3


Scan and pay attention to the public number