<dfn id="tr7zf"></dfn>

    <form id="tr7zf"></form>

    <form id="tr7zf"><listing id="tr7zf"></listing></form>

    <span id="tr7zf"></span>

      搜索

      working principle

      工作原理

      捻線工藝:上層單絲初捻、并合、下層股線反向復捻,一步法完成初復捻工藝。

      1_01.jpg1_02.jpg

      国产福利久久,欧美婷婷综合,第一页欧美,香蕉521av网站永久地址

        <dfn id="tr7zf"></dfn>

        <form id="tr7zf"></form>

        <form id="tr7zf"><listing id="tr7zf"></listing></form>

        <span id="tr7zf"></span>