Z28-650 type thread r靜白olling machine, produ友一ct features: The mac兵妹hine is structurally strong, well務音-made and powerful. It is main外家ly used for rolling 畫問various large trapezoidal threads, 樂但modular threads and high-strength朋姐 standard parts. Suitable f湖那or rolling materials 店吃with a material elongation of more紙年 than 10% and tensile strength less t大唱han 100N/m2 for various carbon妹東 steels, alloy steels and non日弟-ferrous metals.