... factory price >CE certification,1 year warranty AUTOMATICAL ADVERTISEMENT PVC,FLEX BANNER,BILLBOARDS BANNERS,FLEX BANNER CLOTHES WELDING MACHINE ( ... pieces made of some hot melting materials, such as PVC fabric, PE canvas, outdoor poster banner, textile-ne, ... pieces. Technical Parameter of Hot Air Welder for Welding PVC Banners:ModelMODEL 4000IMODEL 4000LVoltage/Frequency220V+/-10%/50HZ &110V+/-10 ...