1,Material:Steel, stainless steel, brass 2,Finished:plating, oxide,anodized 3,Size:any size as your request 1) main machines used: automatic precision lathes, CNC lathes.2) dimension available: out diameter from 0.5 to 50mm with tolerance up to +/-0.01, length from 0.3 to 180mm with tolerance to +/-0.02, other centerless grinding tolerance up to +/-0.001, punching tolerance to +/-0.013) all goods ...