亚洲V日韩V无码一区二区,中文幕无线码中文字蜜桃,国内综合精品午夜久久资源 ,在线 国产 精品 蜜芽,国产精品自产拍高潮在线观看 ,久久久久久亚洲精品成人,亚洲欧美日韩另类丝袜一区,2021国内精品久久久久精免费,国产成人久久精品一区二区三区,高清中文字幕国产精品

萊蕪Iron powder

  • name: 萊蕪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(shù):   更新時間:19/07/28 10:49:07   【打印此頁】   【關(guān)閉
久久综合88中文色鬼| 久久青青草原亚洲av无码| 色老头老太XXXXBBBB| 国产午夜男女爽爽爽爽爽| 人妖精品视频在线观看| 中文字幕在线最新在线不卡| 色婷婷在线精品国自产拍| 成人免费无码大片A毛片抽搐色欲| 一区国产二区亚洲三区另类| 亚洲精品美女久久久久99| 欧美性受xxxx白人性爽| 精品国产一区二区色老头| 2018国产大陆天天弄| 亚洲AV成人无码网站一区二区| 精品综合久久久久久97| 久久这里都是精品一区| 欧美日韩一线| 国产一区二区三区免费观看| 国产偷国产偷亚洲高清午夜| 亚洲综合精品中文字幕| 久久久久国产精品人妻| 91网站在线看| 日本熟妇一区二区三区| 久久亚洲精品国产精品婷婷| 亚洲国产精品久久一线不卡| 狠狠色丁香婷婷综合尤物| 色综合久久久久8天国| 欧美肥婆姓交大片| 免费看国产精品久久久久| 妖精视频亚州无吗高清版| 亚洲精品第一页不卡| 她也色tayese在线视频| 黑人欧美一级在线视频| 国产成人精品1024免费下载| 亚洲国产精品日韩AV专区| 成熟丰满熟妇xxxxx| 国产一区一一区高清不卡 | 日本中文字幕有码在线视频| 曰韩久久精品中文字幕| 国产精品亚洲第一区广西莫菁| 国内精品乱码卡一卡2卡麻豆|