是非供电设备；装在叉架或自动抓住鼓轮顶部边缘的叉上。另一种类型是使用自作用的夹紧臂。两者均可用于在向上位置处理一个或两个鼓。
Is a non-powered device; fitted either to the fork carriage or the forks which automatically grips the top rim of the drum. Another type uses self-acting clamping arms. Both can be used to handle one or two drums in the up-ended position.
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