76211643
Feb 16, 2001
Jan 21, 2003
INSTALLATION AND MAINTENANCE SERVICES IN THE FIELD OF AIR QUALITY CONTROL
Building Construction and RepairPRODUCT DEVELOPMENT ENGINEERING SERVICES; SMALL SCALE TESTING SERVICES; EMISSIONS MONITORING; PHYSICAL MODELING USING SCALE MODELS OF AIR-FLOW SYSTEMS; TECHNICAL SUPERVISION AND INSPECTIONS IN THE FIELD OF AIR QUALITY CONTROL AND INDUSTRIAL USE COMBUSTION
Computer and Scientific