短語詞組短語bull drawing block 單模大拉機bull -block 拉絲機vertical bull block 立式單模大拉機;立式鼓輪horizontal bull block 臥式單模大拉機;臥式鼓輪double draft bull block 二次拉絲機bull block drawing 卷筒式拉拔deck bull block 雙層鼓輪line bull block machine 直線式單頭大拉機vertic doubl draft bull block 立式雙層鼓輪 返回 bull block