精品国产美女大便,欧美亚洲国产每日更新,亚洲国产a 精品_福利

    <track id="ct5h6"><ruby id="ct5h6"></ruby></track>
  1. <acronym id="ct5h6"></acronym>

       

       

       

      TEL:133-7031-4999

      圖片展示

      Selection of stainless steel materials

      Time: 2021-03-03 11:04:01

      Author: 天津科威緊固件有限公司

      Click:

      The selection of stainless steel materials is mainly considered from the following five aspects.

      1. The mechanical properties, especially the strength of throat hoop materials are required.

      2. The requirements of working conditions on the corrosion resistance of materials.

      3. The requirements of working temperature on heat resistance (high temperature strength, oxidation resistance) of materials.

      4. The requirements of production technology for material processing performance.

      5. Other factors, such as weight, price and purchase, should be considered.

      Through the comprehensive consideration of these five aspects, the brand, variety, specification and material standard of throat hoop are determined.


      About Us | Product Center | News Center | Online Message | Contact Us

       

      Address: 200m east of dongtantou village, Yanzhuang Town, Jinghai District, Tianjin

       

      Contact person: Manager Huo       Tel: 133-7031-4999        Website: www.ab8ra6.com

       

      Copyright@ Tianjin Kewei Fastener Co., Ltd.    2021-03      Technical support: Yuhua Huda

       

      Hotline:

      133-7031-4999

      (welcome to call at any time)

      添加微信好友,詳細了解產品
      使用企業微信
      “掃一掃”加入群聊
      復制成功
      添加微信好友,詳細了解產品
      我知道了
      精品国产美女大便,欧美亚洲国产每日更新,亚洲国产a 精品_福利