上课把女同桌内裤摸湿,一线高清视频在线观看www国产,色综合伊人色综合网站下载,男人边吃奶摸下边免费视频,精品综合久久久久久蜜月

  • <sup id="ql6g2"><dd id="ql6g2"><label id="ql6g2"></label></dd></sup>
  • <sup id="ql6g2"></sup>
    <dfn id="ql6g2"></dfn>
    <sup id="ql6g2"></sup>
      <samp id="ql6g2"></samp>
      • <samp id="ql6g2"><rt id="ql6g2"><tbody id="ql6g2"></tbody></rt></samp>
        <tt id="ql6g2"><tfoot id="ql6g2"></tfoot></tt><fieldset id="ql6g2"><rp id="ql6g2"><thead id="ql6g2"></thead></rp></fieldset>
          Products
          YG8155 safety helmet chin strap strength lateral rigidity tester

          Scope of application

          It is professionally used to test the lateral pressure resistance (lateral rigidity) performance of the helmet and the strength of the chin strap of the helmet. The whole machine is uniquely designed and has reliable performance. It is widely used in special labor protection equipment supervision and inspection stations, building science research institutes, and construction projects. Testing stations, power departments, and safety helmet manufacturers.

          Related standards

          GB/T 2812-2006 "Test Methods for Safety Helmets", GB/T 2811-2007 "Safety Helmets"

          technical parameter

          1. LED digital display real-time test force value, automatically save* force value (optional LCD touch screen control, with force value curve)

          2. Measuring force value range: 0750N; accuracy 1%

          3. LED digital display real-time distance

          4. Test range: 100mm; displacement display accuracy: 0.1mm

          5. Timer range: 0~99min; time display accuracy: 0.1s

          6. Equipped with a special test head model (chin strap strength test)

          7. Equipped with a special artificial chin (chin strap strength test)

          8. Equipped with a special test panel (lateral rigidity test)

          9. The stainless steel lever is used to lift and fall freely, and the operation is simple and convenient

          10. High-precision distance measuring device, real-time display of the distance between the two plates, with a resolution of 0.1mm

          11. With upper and lower limit protection function, automatic alarm prompt when the upper and lower limit is reached

          12. Dimensions: 400*600*1100mm

          13. Weight: 45kg

          14. Power supply: AC220V 50Hz