... be welded directly; or it is must to set PVC strips to infill the gap to be welded, and the performance is perfect ... 50/60HzRated power :4.3KWPocket size:18-55mmwelding time:14-30 secondsfabric type:blinds,shades,awning,drapery,valance,table runner,cloth ... machine: Business Card:Exhibitions:Commercial conditions:1. Payment terms: TT, 30% deposit in advance, 70% before delivery.2. Shipping terms: FOB ...