3.11 Free Forging up till 2 kg unit weight
3.12 Free Forging between 2 till 100 kg unit weight
3.13 Free Forging from 100 till 2000 kg unit weight
3.14 Free Forging from 2000 kg to 5 tons unit weight
3.15 Free Forging over 5 tons unit weight
3.19 Free Forging of Extremely Large Unit Weight and Dimensions