1.Window Operator 2.Zinc Alloy 3.Aluminium Alloy 4.Best quality and competitive price 5.ISO9001:2008 1,Zinc/aluminum window operator2,Zamc/alumino operador de ventana3.Painted:silver/bronze/black/white4.Extension link:provided with 20 kinds of link,with galvanized finish5.Packaging way:bulk package with 100 sets/box, blister card package with 40 sets/box.6.ISO9001:2008 ...