This finished product, single wall corrugated board, is mainly introduced as inner packing material. It can be also used as outer packing material for light or small-sized commodities. Four flutes A, B, C and E as well as special customer-tailored flutes are provided. Steam heating system and oil heating system are optional (but oil heating is not suitable for line with speed above 100m/min). The standard three ply line is made up of single facer (1), mill roll stand (2), preheater (optional in case of speed below 120m/min), conveying bridge (1), glue machine (1), double facer (1), slitter scorer (1) (thin-blade or flaring slitting tool is optional), cut-off (1), stacker (1). Speed of 80m/min, 100m/min, 120 m/min, 150m/min or 180 m/min is offered to meet customer?s requirement