73830824
Oct 12, 1989
Dec 18, 1990
CONSTRUCTION, OPERATION, MAINTENANCE AND REPAIR OF HEATING AND COOLING SYSTEMS; CUSTOM MANUFACTURE OF HEATING AND COOLING FLUIDS TO THE ORDER AND/OR SPECIFICATION OF OTHERS
Building Construction and RepairDESIGN OF HEATING AND COOLING SYSTEMS AND EQUIPMENT THEREOF AND DIAGNOSTIC EVALUATIONS OF HEATING AND COOLING SYSTEMS
Computer and Scientific