Membrane forming production line Modified bitumen mixing system Hot oil ... various types of modified bitumen waterproofing membrane(SBS/APP);two shifts per day ,16 hours per working day ... Surfacing:sand, slate flakes , PE film, aluminum foil One side: PE film; another side: sand or slate flakes ... Width: 1m, length: 10 m6, Speed of the production line: 0-25 m/min adjustable, Mechanical speed 12m/min7, ...