... sandwich panel .its working speed can be adjusted by frequency converter,and it can process sandwich panel at one ... is made up of such equipment as decoiler ,feeding ,squeezing ,heating ,laminating ,edge rolling ,edge turn-over ,groove-making , ... packing 5.Components of line:No. NameUnitQty 1Decoilerset1 2Main machine for roll formingset1 3Automatic control systemset1 4Hydraulic systemset1 5Automatic ...