2523 Cement, incl. cement clinkers, whether or not coloured

2523 (01/1988-..) Cement, incl. cement clinkers, whether or not coloured 25231000 (01/1988-..) Cement clinkers 25232100 (01/1988-..) White portland cement, whether or not artificially coloured 25232900 (01/1988-..) Portland cement (excl. white, whether or not artificially coloured) 25233000 (01/1988-..) Aluminous cement 25239000 (01/2010-..) Cement, whether or not coloured (excl. portland cement and aluminous cement) 25239010 (01/1988-12/2009) Blast furnace cement 25239030 (01/1988-12/2003) Pozzolanic cement 25239080 (01/2004-12/2009) Cement, whether or not coloured (excl. portland cement, aluminous cement and blast furnace cement) 25239090 (01/1988-12/2003) Cement, whether or not coloured (excl. portland cement, aluminous cement, blast furnace cement and pozzolanic cement)