This production line suitable for combine 2-3 layer grey board (300-600g/m2) into the carboard with different thickiness and size,This production line has many characters of rational  design,compact structure, convenient opertaion,energy saving and so on.It also filling many defects such as manual pasted and so on, decrease production cost in great degree, improve prodcut quality,flatness of carborad and strength of adhensive force, is you Ideal equipment of carboard.production.