一区二区三区在线视频免费观看_免费高清毛片_私拍在线_久久久久久久久综合_色撸撸av_男女免费视频网站_牛牛澡牛牛爽一区二区_午夜精品久久久久久久久_午夜一二三区_91免费影片_国产91在线观看_无码成人精品区一级毛片_青青草久久久_久久久久九九_日韩精品视频免费看

噴淋房設備：鋼管經3PE涂敷后，進入冷卻室進行降溫定型。冷卻室配備升降噴淋裝置，可根據3PE管徑大小進行調節，根據不同管徑的3PE產品通過控制流量來實現降溫定型。冷卻室內的驅動部分均配備水隔離裝置從而起到保護電氣元件的作用。

Spray room: after 3PE coating, the steel pipe enters the cooling room for cooling and finalization. The cooling room is equipped with lifting spray device, which can be adjusted according to the size of 3PE pipe diameter, and the cooling and finalization can be realized by controlling th