亚洲第一区欧美国产不卡综合_亚洲午夜中文日韩_无码手机在线中文字幕视频_四虎影院最新地址_亚洲欧美中文影视_尹人香蕉久久99天天拍欧美p7_床上色视频免费观看在线好看到停不下来！_免费无码日产av_老师强奷女同学系列H文_8x8ⅹ国产精品一区二区

High rigidity frame and beam， high temperature tempering treatment after welding， effectively ensuring the stabi ity of accuracy.

Grooving with single knife holder(white steel knife of alloy knife) .

High-end CNC system is equipped with servomotor closed-loop control， which has highspeed and high work efficiency；