0000898430-98-001314 DEF 14A 1 19980527 19980403 NYSE PCX CALMAT CO 0000023533 1400 950645790 DE 1231 DEF 14A 34 001-07035 98587152 3200 SAN FERNANDO RD LOS ANGELES CA 90065 2132582777 CONROCK CO 19840712 CONSOLIDATED ROCK PRODUCTS CO 19720915 DEF 14A 1 000089843098001314-001-seq1-def-14a.txt DEFINITIVE 14A