... 2500mm 4,Max. hemline grinding: 5mm(single line)5,Max. arris grinding: 3mm6,speed: 1~6.5 m/min,request achieve ... Structure: 1.Flange adopt double Ball strew and straight line guiding rail, resetting well. 2.Grinding head planker adopt high ... and straight line guiding rail, Accurate positioning. Compaction frame auto lifting. 5.Master drive adopt mechanism frequency conversion speed regulation, main ...