... 4.20 years of manufacture experience Advantages:A) Variety types for selectionB) Competitive price (China mainland manufacturer)C) Good quality (years ... ourselves,own the die-casting,punching.,etc,machinesMaterial:Zinc Alloy, Stainless Steel, Aluminium, Brass, Steel, Wod, and Plastic, etc...Finishing:Chrome Plating ... , decorative hardwares and so on. LC-W8 Black Painted Zinc Alloy Window Lock