門(mén)排主框、副框、斜管采用特有的截面設計,使其結構能夠錯位重疊,門(mén)體收攏后縮位小,伸縮比:10:1.7(包機頭)。門(mén)體采用三種規格走輪,且兩種門(mén)排輪采用錯位搭配,收攏后重疊,占位空間小,輪轂采用三角形設計,高雅大氣。 The door body adopts three specifications of walking wheels, and the two kinds of door row wheels are misaligned and overlapped after being folded. The space is small. The wheel hub adopts a triangular design and is elegant and atmospheric.