... ,plastic machine,film machine,machine,pe film machine film Blowing Production Line,china film machine,film blowing machine,plastic machine,film machine ... materials, and having package board mechanism which can make vest type bag.Rolling up device with double-drawing in and do ... -300mm Choose freelyScrew DiameterΦ45/50/55/65mm Choose freelyScrew L/D RatioL/D 28:1Screw Speed10-100r/minMax Ouput30-70kg ...