PN EN 12475-2
PN EN 12475-2 (Classification of dense shaped refractory products - Part 2: Basic products containing less than 7 % residual carbon)· PN (Poland) · 31 materials
PN EN 12475-2 (Classification of dense shaped refractory products - Part 2: Basic products containing less than 7 % residual carbon)· PN (Poland) · 31 materials