<samp id="0kawq"><tbody id="0kawq"></tbody></samp>
  • <ul id="0kawq"></ul>
    国产日本一区二区三区久久,国产精品一区2区三区,玩弄放荡人妻少妇系列视频,午夜精品福利亚洲国产 ,日韩精品一区二区三区四,国产精品天天看天天狠,欧美三级视频,久久精品国产精品一区二区

    湖南Iron powder

    • name: 湖南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: 中文字幕在线观看乱码一区| 亚洲欧美激情在线一区| 激情无码人妻又粗又大中国人| 无码专区—va亚洲v专区vr | 色综合久久婷婷五月| 成人国内精品久久久久影院vr| 久久99热全是成人精品亚洲欧美精品 | 久久麻豆精亚洲av品国产精品| 中文字幕国内一区二区| 久久久久高潮喷水无码| 99久久99视频只有精品| 张家界市| 午夜爽毛片| 色综合天天综合中文网| 夜夜爽8888免费视频| 男女高潮免费观看无遮挡| 2021av在线| 熟妇人妻不卡中文字幕| 久久久久久岛国免费网站| 国产成人精品综合| 欧美成人综合视频| 亚洲夫妻性生活视频网站| 久久青青草原亚洲AV无码麻豆| 国产成在线观看免费视频| 少妇性饥渴videofree| 久久蜜臀一区二区三区av| 97国产精品麻豆性色| 国产一区二区久久久| 国产av办公室丝袜秘书| 黄色激情视频一区二区| 中文亚洲爆乳av无码专区 | 99久久国产一区二区三区| 精品国产乱一区二区三区| 亚洲一区二区三区自拍偷拍| 精品久久日产国产一区| 国产精品欧美久久久久老妞| 亚洲男人天堂一区二区| 国产AV一区二区三区传媒| 屏东市| 一区二区三无码| 亚洲av人片在线观看调教|