顶它关闭的木制起重机吊钩和旋转动作。
Top it off with the wooden crane with hook and swiveling action.
吊钩组是起重工具的一种。
所有起重链都适用于吊钩和吊耳。
QB型防爆吊钩桥式起重机工作级别为中级。
QB type explosion-proof hook bridge crane work level is intermediate.
QB型防爆吊钩桥式起重机工作级别为中级。
QB type explosion-proof hook bridge crane work level is intermediate.
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