NF EN 12475-3
NF EN 12475-3 (Classification of dense shaped refractory products - Part 3: Basic products containing from 7% to 30% residual carbon)· AFNOR NF (France) · 55 materials
NF EN 12475-3 (Classification of dense shaped refractory products - Part 3: Basic products containing from 7% to 30% residual carbon)· AFNOR NF (France) · 55 materials