1. According to the type of workpiece, The three-axis thread rolling machine is used to process hollow steel pipes, and the two-axis thread rolling machine is used to process solid steel bars.
2. ອີງຕາມເສັ້ນຜ່າສູນກາງ rolling ຂອງ workpiece ໄດ້, ມີຫຼາຍແບບທີ່ຈະເລືອກເອົາຈາກ. ເຄື່ອງແບບດຽວສາມາດມ້ວນໃນຂອບເຂດກ້ວາງຂອງເສັ້ນຜ່າສູນກາງ.