... Mild steel, Alloy Steel, Aluminum alloy, Titanium, Copper Brass and POM etc.* Surface treatment, zinc plate, sand blasting, anodising ... ect.*Tolerance: +/- 0.001mm to 0.02mm.* Idea and designs from customers can be realized into new products ... accepted* Customized drawings are accepted* Delivery and service that both anticipate and exceed customer's expectation precision maching for LED flashlight