... RoHs The precision has been control less than 0.003mm 1.Material:Al 6061-T62.Standard:ISO9001:2000 3.Process:polishing ... );Brass;Bronze,Kovar;etc.StandardNonstandard JIS,DIN,ASTM,BS,SAE,etcNet Weight0.1-1kgDimensions1mm-300mmSurface treatmentZinc,Nickel,Au,Sliver,chrome,sliver,polishing ...