WYZ-800S auto 4/4 color flexo central impression printing machine consists of unwinder, 4/4 printer, air oven, corona treater, w By ... .WYZ-800S auto 4/4 color flexo central impression printing machine consists of unwinder, 4/4 printer, air oven, corona treater, winder ... shortened between China and developed nations, in next ten years flexo printing will be a industry stressed supported by the nation ...