1.Material :POM; 2.Surface finish:none; 3.Application:upper cover of amplifier; 1.Main dimension: 268*17*18±0.05mm 2.Tolerance: Tolerance0 mm L<20mm;0.05mm 20mm L<80mm0.10mm L 80mm0.15mm 3.Notes: 1.Material:AL ADC12;2.Finish:none;all finish available;3.All surface should be clean and without contamination;4.No Burr and all sharp edge should be chamfered;5.No scratches or crashes allowed; 4. ...