optical rotary encoder disk 1.Good flatness,prompt ... the part.The main materail we use is stainless steel imported from Janpan,including SUS304,SUS306 etc.Usually, ... your CADfile to us firstly,we will give a quotation for you later according to your customized ... Material CapabilitiesBrass, Bronze, Copper, Hardened Metals, Precious Metals, Stainless Steel, Aluminum, Alloy (Thickness from 0.03 mm up to ...