0000732847-99-000026 SC 13G 1 19990723 CENTRAL SPRINKLER CORP 0000766041 3490 232328106 PA 1031 SC 13G 34 005-37077 99669586 451 N CANNON AVE LANSDALE PA 19446 2153620700 451 N CANNON AVE LANDSDALE PA 19446 FIRST WILSHIRE SECURITIES MANAGEMENT INC/CA 0000732847 952844956 0930 SC 13G 600 S LAKE STREET SUITE 405 PASADENA CA 91106 600 SOUTH LAKE AVE STE 100 PASADENA CA 91106 SC 13G 1 000073284799000026-001-seq1-sc-13g.txt