REPAIR/MAINT AND UPKEEPING OF BUILDING SAFETY MEASURE/ FIRE FIGHTING SYSTEM INSTALLED AT HIGH-RISE BUILDING, 8 SYNDICATE BUILDING AND AMN DUMP WITH ALLIED WORK DG SET AND REPAIR/MAINT OF EXTERNAL WATER SUPPLY GI/DI PIPELINES, BOREWELLS, SUBMERSIBL (投標 №115970706cn)