亚洲AⅤ无码色情在线观看,校花被扒开双腿强行高潮,中文字幕亚洲乱码熟女在线,插b内射18免费视频

Ni

  鎳2.jpg


鎳3.jpg


鎳1.jpg




Introduction: mainly used in the coating of magnetic storage media, semiconductors, LEDs

Purity: 99.5%-99.99%

Shape: planar, rotary

Appearance: silver grey

Density: 8.94g/cm3

Specification: customized


Scan and pay attention to the public number