欢乐颂小说,我吃西红柿,怎样写网络小说 http://novacrop.cn 擠出機螺桿,注塑機螺桿,舟山螺桿,螺桿廠 Wed, 25 May 2022 00:46:06 +0000 zh-Hans hourly 1 https://wordpress.org/?v=6.6.2 http://novacrop.cn/wp-content/uploads/2021/12/2-150x150.png PVC電線電纜螺桿機筒 – 舟山市杰德機械有限公司 http://novacrop.cn 32 32 PVC電線電纜螺桿機筒 http://novacrop.cn/%e7%a4%ba%e4%be%8b%e4%ba%a7%e5%93%81%ef%bc%9aamd-%e9%94%90%e9%be%999-3900x-%e5%a4%84%e7%90%86%e5%99%a8-r97nm-%e7%9b%92%e8%a3%85cpu/ http://novacrop.cn/%e7%a4%ba%e4%be%8b%e4%ba%a7%e5%93%81%ef%bc%9aamd-%e9%94%90%e9%be%999-3900x-%e5%a4%84%e7%90%86%e5%99%a8-r97nm-%e7%9b%92%e8%a3%85cpu/#respond Wed, 29 Apr 2020 02:54:35 +0000 http://localhost/theme20/?p=804
  • 螺桿直徑: ?25~?250
  • 氮化層深度:0.5mm-0.7mm 雙金屬螺桿:合金層硬度HRC>60
    表面層硬度: HV960-1100 合金層深度:1.2mm-2.03
    螺桿直線度:0.015mm 鍍鉻螺桿:鉻層厚度:0.03-0.06mm
    表面光潔度:0.04Ra/um~0.08Ra/um 長徑比:(23~30):1

     

     

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