38013000 - Carbonaceous pastes for electrodes and similar pastes for furnace linings
41142000 - Patent leather and patent laminated leather; metallised leather
38244000 - Prepared additives for cements, mortars or concretes
72179050 -- Containing by weight 0,25?% or more but less than 0,6?% of carbon
27101962 ------ With a sulphur content not exceeding 0,1?% by weight