本起重机有两台小车，两小车可以同时使用，也可以单独使用，适用于厂矿企业的车间或露天仓库吊运长件材料(木材，纸筒，管封，棒材)。
Double—trolley Bridge Crane
With two trolleys that works simultaneously or separately，this crane is suitable to lift long materials(wood，paper tube，pipe and bar)in workshops or outdoor stores in factories and mines．
注：1．大车导电有角钢和安*滑触线两种形式，供选择。
2．操纵形式有室操(分开式和闭式)，地操和遥控三种，供选择。
Notes：
1．Power supply for the main vehicle can be either through angle steel or safety slide wire．
2．Operation can be done in the cabin(open-type and closed-type)，on the ground or through remote control.
