国产精品久久久久久无码_亚洲av无码精品蜜桃_精品亚洲国产成av人片传媒_国产熟人av一二三区_亚洲成a人无码

上管機(jī)設(shè)備：上管機(jī)在一步法設(shè)備中主要起到上管的作用，機(jī)組運(yùn)行時(shí)通過變頻調(diào)速，可以實(shí)現(xiàn)多段速運(yùn)行，快速追管，與撥管器配套使用可以實(shí)現(xiàn)快速上管。

 Pipe loading machine: the pipe loading machine mainly plays the role of pipe loading in the one-step production line. When the unit is running, it can realize multi-stage speed operation and fast pipe tracking through frequency conversion and speed regulation. It can realize fast pipe loading when used together with the pipe s