欧美vieox另类极品_传媒视频在线观看_中文字幕亚洲自拍_中国特黄一级片_夜夜躁狠狠躁日日躁婷婷小说_欧美日日爱_天堂中文在线免费观看_国产精品久久久久免费_国产精品一区二区女厕厕_亚洲va中文字幕_日本免费三片免费观看_成年人福利视频_91超碰在线免费_精品国产色_欧美日韩在线免费播放

  The open type two high up adjusting mill is composed of two horizontal rolls arranged up and down in the same vertical plane. Mainly used in metal rolling process. It can be divided into reversible type and irreversible type. The reversible type includes blooming mill, rail beam mill, medium and heavy plate mill, etc. The irreversible type includes billet continuous rolling mill, laminated sheet rolling mill, sheet or strip cold rolling mill, temper mill, etc.