... chinaBrand:ZXSS Model:ZXSS-GATE SERY Material:Stainless Steel & add thickness steel & Steel construction & PVC Fabric(Fibre)& Driver machineOpen ... nice out-looking. 5).This door . 6).The reinforcing steel inside door ensures the good strength performance. 7).Application ... PVC curtain, curtain weight balance bar, guide wheel, lift steel line, glide wheel, side airproof, photoelectric switch, indicator ...