... mold by ourselves,own the die-casting,punching.,etc,machinesMaterial:Zinc Alloy, Stainless Steel, Aluminium, Brass, Steel, Wod, and Plastic, etc...Finishing ... trends design hardware such as door handles,door knobs, furniture handles & knobs, decorative hardwares and so on. LC-LA Zinc Alloy Door Numberal Lettering A