国产97在线_人人妻人人爽人人爽欧美一区_久久这里只有精品99国产男人天堂_亚洲av一区二区三区四区_亚瑟中文在线_一个人在线观看的www免费_av在线中文字幕不卡电影网_欧美性爱一级黄片a级_欧美人与动牲交a_国产精品区区久久久狼

Drum automatic welding machine is with welding roller frame, welding deflection machine combination, of component inside and outside circular seam, fillet weld, internal and external longitudinal seam automatic welding of special equipment, has the stationary type, rotary type, all position and so on the many kinds of structure form. According to the needs of users choose structure and supporting all kinds of welding machine and increase tracking, swing, monitoring, flux recovery of transportation and other auxiliary function, also can be used for users design and manufacture all kinds of special special welding equipment.