DPK-A型电动管道坡口机DPK-A25 型号适用管外径(mm)管壁厚(mm)转速rpm重量kgDPK-A25252.5~3189DPK-A32323~4189.3DPK-A38383~4189.8DPK-A42423~4.51810.2DPK-A48483~4.51811DPK-A51513.5~41811.5DPK-A57573~4.51812.2DPK-A60604~5.51813.1DPK-A76764~61813.6DPK-A83834~61814.5DPK-A89894~61815.6