A、打包轻巧方便、免铁皮、安全省电、接头平滑牢固, B、 可用汽车电源供电,方便野外打包工作; C、 特别适用于大型物件打包(与拉紧机械配套使用) A . To package convenientlyandportably,it is safe andsaving-electricity, The packingjointissmoothandfirm. B. Powercanbeprovidedbyauto"sbattery, convenientforpackagingoutside. C .It isespeciallysuitable forpackaginglargeboxandtheotherthings.