① 2号塔出口阀 GJ44WU-320R00-80


② GJ44WU-320ROO-80 一切阀


③ BJ45W25R00-100


④ 保温阀


⑤ 保温阀


⑥ 二切阀 GJ44WU-320R00-80


⑦ 管道视镜


⑧ 止回阀 H4 1/3 WU-220R00-80