久久久毛片-9.1大片-爱射综合-三级自拍-成人毛片18女人毛片免费-a免费视频-免费毛片大全-国产色站-爽爽爽视频-欧美日韩综合一区二区-激情中文网-欧美极品第一页-日本高清视频一区二区三区-日日夜夜一区二区-一区二区视频播放

Ni

  鎳22.jpg


鎳1.jpg  


鎳1.png


Introduction
Purity:   99.95%-99.99%
Shape:Block,   Columnar
Appearance:silver   grey,metallic luster
Melting   Point:1453℃
Density:   8.9g/cm3


Scan and pay attention to the public number