U-100x165, U-120x200, U-120x300, U-170x300, U-170x490, U-220x380, U-270x330, U-270x480, U-510x610 特点 * 孔距如属直线或长方型，请用方型万向多轴器，以免移位脚延伸太长致使受力不够。用法与圆型相同。(尽量配合工作孔距设计) * 可搭配快拆式万向接头及伸缩式轴脚
