Tooth bars - two square templates used on the thread rolling machine, made of DC53 material or SKH-9 high-speed steel, divided into two pieces, one long and one short, the long plate is a movable plate, the short plate is a fixed plate, with tooth patterns on it, used to extrude screws into threaded molds.
牙齿杆被南部木制工匠.称为“牙齿棒”,通常是指脸部框架下方设置的零件,以连接两条腿.家具,腰部是腰部的主要连接部分,是腰部下方的主要连接部分.其他部件设置的部分通常是姓氏

