<nobr id="3ttst"><source id="3ttst"></source></nobr>
<li id="3ttst"></li>
    1. <style id="3ttst"><code id="3ttst"></code></style>

      <table id="3ttst"></table>
      国产欧美另类第一页,日韩人妻少妇一区二区三区 ,顶级欧美色妇xxxxx,性色AV无码免费一区二区三区,亚洲欧美一区二区三区在线,亚洲人成伊人成综合网无码,亚洲国产精品久久久久久,成av人片一区二区久久

      江蘇Iron powder

      • name: 江蘇Iron powder
      • Classification: Iron powder
      • Corporate name: Dada Alloy Co., Ltd
      • Time: 19/07/28
      • Click count:  
      Product details

      Iron dust is a collection of iron particles with a size less than 1mm. Color: Black. It is the main raw material for powder metallurgy. According to particle size, it is commonly divided into five levels: coarse powder, medium powder, fine powder, ultrafine powder, and ultrafine powder. Particle size ranges from 150 to 500 μ The iron powder composed of particles within the range of m is coarse powder, with a particle size ranging from 44 to 150 μ M is a medium powder, 10-44 μ M is fine powder, 0.5-10 μ M is fine powder, less than 0.5 μ M is ultrafine powder.

      Due to its good activity and easy moisture absorption and oxidation, reduced iron powder is often used in food desoxidant . Common specification parameters:

      Fe 96% min; Harmful elements meet food grade, with a particle size of 80 or 100 mesh



      點擊次數:   更新時間:19/07/28 10:49:07   【打印此頁】   【關閉
      主站蜘蛛池模板: 精品在免费线中文字幕久久| 日本亚洲成高清一区二区三区| 偷拍精品一区二区三区| 久久狠狠一本精品综合网| 国产精品亚洲五月天高清| 日本精品一区二区三区四区| 强伦姧人妻免费无码电影| 国产无遮挡无码视频在线观看| 国产免费网站看v片元遮挡| 无码人妻一区二区三区四区AV | 国产精品欧美日本韩免费一区二区三区不卡 | yw.193.c㎝国产在线观看| 国产真实自在自线免费精品| 国产色a在线观看| 国产愉拍91九色国产愉拍| 久久先锋男人AV资源网站| 国产精品高清一区二区不卡片| 激情文学人妻中文字幕| 男女一边摸一边做爽视频| 亚洲熟女乱一区二区三区| 国产亚洲美女精品久久| 午夜成人福利| 人人妻人人澡人人爽超污| 亚洲美女久久| 美女张开腿黄网站免费下载| 国产一区二区三区十八禁| 18禁无遮挡啪啪无码网站破解版| 久久热这里只有精品最新| 国产成人高清亚洲一区| 午夜国产av一区二区三区| 欧美a级欧美1级a大片| 男人进去女人爽免费视频| 秋霞电影院午夜无码免费视频| 亚洲国产成人精品无码区花野真一 | 婷婷六月综合网| 国产农村妇女一区二区三区| 国产精品久久无中文字幕 | 成人日韩欧美| 亚洲国产一区二区精品| 亚洲AV无码日韩一区二区乱| 人妻AV无码系列一区二区三区|