本机特点（FEATURE） 全新改良机种 本机为FW787之全新改良机种，具有速度快、差动量大及零件强制给油设计，耐磨性高等优点。 The FW780 is a new upgraded model of FW787 which offers super high speed operation,bigger differential feed dog ratio and the parts have high resistance of wear form the new lubrication system. 左切刀切布边功能 全新设计之FL（左切刀）切布边功能，好操作、稳定性佳。 All new designed of left hａnd side fabric trimmer cut the extra fabric in easily and stable 透明吸布屑管设计 透明吸布屑管设计，可轻易观察风管内部布屑排放情况。 The limpid waste fabric suction tube design is easy to check the waste fabric in the tube which have been voided or not. 一体成形开口式固定风管设计 采用一体成形开口式固定风管设计，安装容易且外型美观。 The body forming open type suction tube installs in easy and beautiful. 适用于各式针织品、T桖、汗衫之下摆工作（附左修刀修齐布边后，再进行下摆车缝工作） Applicable to all kinds of knitwear,T-shirt &;; Underwear for hemming stitch.(The left hａnd side fabric trimmer cut the extra fabric of edge to make it even for hemming.) | 
