PVC wavy board production line Features: With SJSZ-60*22 Taper Twin-screw extruder combined with corresponding wavy plate mold, drawing auxiliary machine and cutter,SJ-BLB1000 Set for Extruding Wavy plates can continuously produce the colored, weather-resistant and flame-retardant wavy PVC board used in the construction. If replacing the relative pare, it can also produce flat and grid plastics plates. The set has the characteristics of good plasticizing, stable performance, compact structure, high automatic degree and convenient operation.