日本添下边无码视频,性xxxfllreexxx少妇,中文字幕人妻无码一区二区三区,超级香蕉97视频在线观看

河北Copper and copper alloy powders

  • name: 河北Copper and copper alloy powders
  • Classification: Copper and copper alloy powders
  • Corporate name: Dada Alloy Co., Ltd
  • Time: 19/07/28
  • Click count:  
Product details


Copper and copper alloy powders are produced using chemical precipitation and reduction techniques, characterized by uniform composition, fine particles, large specific surface area, and high chemical activity.

Commonly used in diamond tools, catalysts, electronic devices, etc



點擊次數(shù):   更新時間:19/07/28 10:55:07   【打印此頁】   【關(guān)閉