<form id="nhhrp"></form>

      <address id="nhhrp"></address>

      <form id="nhhrp"></form>

      <output id="nhhrp"><pre id="nhhrp"><th id="nhhrp"></th></pre></output>

        <form id="nhhrp"></form>

              PRODUCT

              Copper nickel inner grooved tube
              Product characteristics
              Inner threaded copper pipes, also known as non-smooth pipes, refer to TP2 copper pipes with smooth external surface, a certain number of internal surface and regular threads.
              The thermal conductivity of the inner threaded copper tube is 20 to 30 percent higher than that of the smooth tube due to the increase of its surface area. With the energy shortage in the world and the implementation of the energy efficiency ratio air conditioning access system in China, internal threaded copper tubes will be widely used in the air conditioning and refrigeration industry.

              ? 久久久久国色av免费看|精品久久久久久无码成人|亚洲VA欧洲VA日韩VA|国产精品乱码一区二区三区

              <form id="nhhrp"></form>

                  <address id="nhhrp"></address>

                  <form id="nhhrp"></form>

                  <output id="nhhrp"><pre id="nhhrp"><th id="nhhrp"></th></pre></output>

                    <form id="nhhrp"></form>