Water heaters, water heating installations and storage water heaters for drinking water - Part 7: Tanks with a capacity of up to 1000 l, requirements relating to manufacture, thermal insulation and corrosion protection
Water heaters, water heating installations and storage water heaters for drinking water - Part 7: Tanks with a capacity of up to 1000 l, requirements relating to manufacture, thermal insulation and corrosion protection— 9 стр.
