# 1 Cold working with 1200 venturi scrubbing sandpaper# 2 Cold working with high speed polishing machine polishing.# 3 light 10 minute Bake at temperature 600° c and then leave to cool in the oven and polishing with sandpaper 1200 venturi.# 4 Quenched for 10 minutes at the temperature of 800° c and polished with sandpaper extension 1200.# 5 Quenched for 10 minutes at the temperature up to 220° c and leave to cool by placing it, exposed to air and polished with sandpaper extension 1200.
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