Contactmeat:xuelongqiye@or3dpanelmachine@Foamedpolystyreneinsulatinglayerwiththethicknessof100m/minthecenter,steelwiretrusscoatedwithzincof3m/m(3.8mm)betweentheinsulatinglayerispinnedat2``intervals,atbothsidesofwhichformsupat5CmX5Cm(5CmX10Cm)intervalswiththewiremeshcoatedwithzincof3m/mthatisatfine-spun50m(100m)intervals.Sothewholepointsofcontactinallsteelwiresarejoinedinaspotwelding,whichisapanelof2.4m(4m)fulllength,1.2mwidth,60~150mmthickness.)