... Bronze,Aluminum,Copper,etc MAX diameter machining size 1.0mm to 120mm,Max Tolerance +/-0.01mmsuface processing way Black Anodized ... time 3daysmass-making time10-15days6.Advantage: High efficient when we receve your detailed drawing or sample, we will quote for ... production;-During production, technicians self-check and Engineer spot check to assure the good quality. - QC inspect after products finished ...