... shapes can be available 1. Precision acrylic turning switch knob ;2. Custom knobs can be realized in ... . ISO9001:2008 certified; 2. We can work with CAD drawing and solidworks; 3. Parts will be ... Precision Machining, Turning, Milling, Drilling, Tapping...Soft Metals:Aluminum, Brass, Carbon Steel, Copper, Stainless Steel 316, 303, ... for mass production. CNC turned plastic switch knob with acrylic PMMA