k8凯发天生赢家

Nb

铌1.jpg  


铌2.jpg  


铌3.jpg




Introduction
Purity:99.95%
Shape:Block,   Columnar
Appearance:grey   metal
Melting   Point:2468℃
Density:   8.57g/cm?


Scan and pay attention to the public number

网站地图
友情链接：币游国际AG88  币游国际AG  凯发K8  凯时K66  AG尊龙凯时  k8凯发官网  人生就是博  尊龙凯时  k8凯发天生赢家  bwin必赢  凯时K66  k8凯发天生赢家  凯发一触即发  AG九游会  k8凯发天生赢家一触即发