The laser cutting head does not come into contact with the surface of the material and does not scratch the workpiece.
ຫົວຫນ້າຕັດ laser ບໍ່ໄດ້ເຂົ້າໄປສໍາຜັດກັບພື້ນຜິວຂອງວັດສະດຸແລະບໍ່ scratch workpiece ໄດ້.