... slide-in top support bar for easy set Roll up Model 19 is double-sided electric, its material is aluminum, its ... , hotels, auto dealers, schools and supermarkets, etc NameElectronic roll up model 19Item NO. JCB1-7DMaterial AluminumColor Silver & BlackN.W. 5.3KGG ... able to produce high-quality products on time and to ship goods by complying with the full international standards.