... 0.05mm 4.Bottom Price Advantage of Precision Bottom Plate :1.Material:SUS304/SS3162.Surface:Electropolishing3.Min Tolerance ... Material: stainless steel, iron ( SPCC, SECC, SPTE, tinplate), aluminum alloy, red copper, brass, bronze alloy are available.(2) Metal ... -Cutting 0.002 Product Type Precision Bottom Plate MaterialStainless steel, Carbon Steel, Aluminum alloy, Zinc alloy, Brass,copper, brass ...