This series machine is single column vertical lathe, it has a railhead and a side head.
本系列单柱立式车床，有一个立刀架和一个侧刀架。
2
Equipment has lathes, CNC Vertical lathe, CNC bed Big head, boring machine and so on.
设备有车床、数控立车、数控大头床、镗床等。
3
Via the construction of geometric model, calculation formula for the head of worm lathe tool has been deduced, which has simplified calculation program.