... Process : lost wax process 3 Surface : mirror polish Rail end of stainless steel castingSpecification1, investment casting ,precision casting2, ... 50mm high witness3) Flush grind6, Heat treatmentHeat treat are used to control hardness ,mechanical properties ,corrosion resistance ,and ... Tooling & CavitiesIf the design contains features that will raise scrap or rework rates (and the piece price ).The ...