短語詞組短語bull drawing block 單模大拉機(jī)bull -block 拉絲機(jī)vertical bull block 立式單模大拉機(jī);立式鼓輪horizontal bull block 臥式單模大拉機(jī);臥式鼓輪double draft bull block 二次拉絲機(jī)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(jī)vertic doubl draft bull block 立式雙層鼓輪 返回 bull block