<track id="utijh"><div id="utijh"></div></track>
            <bdo id="utijh"></bdo>
            <tbody id="utijh"></tbody>
            <bdo id="utijh"><optgroup id="utijh"><thead id="utijh"></thead></optgroup></bdo>

            <track id="utijh"><span id="utijh"><td id="utijh"></td></span></track>
            1. <bdo id="utijh"><optgroup id="utijh"></optgroup></bdo>

              <tbody id="utijh"><div id="utijh"><td id="utijh"></td></div></tbody>
            2. <option id="utijh"><span id="utijh"></span></option>
              新聞詳情

              幾分管與多少口徑的換算

              日期:2024-06-05 21:31
              瀏覽次數:2719
              摘要:國標公稱直徑的單位為mm, 美標閥門公稱直徑的單位為in(英寸) 1分=1/8寸=DN6 2分=1/4寸=DN8 3分=3/8寸=DN10 4分=1/2寸=DN15 6分=3/4寸=DN20 8分= 1 寸=DN25
              國標公稱直徑的單位為mm,
              美標閥門公稱直徑的單位為in(英寸)   
              1分=1/8寸=DN6 
              2分=1/4寸=DN8 
              3分=3/8寸=DN10 
              4分=1/2寸=DN15 
              6分=3/4寸=DN20 
              8分= 1 寸=DN25
              亚洲欧美一区二区三区蜜芽|国产精品这里只有精品|久久精品亚洲一二区|欧美日韩精品一区二区在线欧美
                  <track id="utijh"><div id="utijh"></div></track>
                      <bdo id="utijh"></bdo>
                      <tbody id="utijh"></tbody>
                      <bdo id="utijh"><optgroup id="utijh"><thead id="utijh"></thead></optgroup></bdo>

                      <track id="utijh"><span id="utijh"><td id="utijh"></td></span></track>
                      1. <bdo id="utijh"><optgroup id="utijh"></optgroup></bdo>

                        <tbody id="utijh"><div id="utijh"><td id="utijh"></td></div></tbody>
                      2. <option id="utijh"><span id="utijh"></span></option>