large-diameter

1.Due to the brittleness of fiber, the godet and wingding rollers with large diameter were used.

由于光纤比较脆,采用了的导丝盘和卷绕筒。

2.The UN250 butt-welding machine adopts manual flash prewarming, hydraulic pressure upset mode, is suitable to weld large diameter and section weldment.

UN250对焊机采用手闪光预热、液压顶锻的方式，适焊接直径截面的焊件。