SHIP COLDROOMS - even built in compliance with the U.S.P.H. standards; UPRIGHT REFRIGERATORS - compact 650 liters (169 gallons) or sectional 900-1800-2700 liters (234-468-702 gallons) or 1200-2400-3600 liters (312-624-936 gallons). INSULATING DOORS - for prefabricated or built in outer lining with brickwork shell coldrooms, revolving on hinges or sliding type. SECTIONAL ROLL-UP OVERHEAD DOORS - with fiberglass lining, for loading docks. BLAST FREEZERS AND QUICK FREEZING TUNNELS - in-line or spiral type. RETARDER PROVERS - for bakery and confectionery products. TURN-KEY - refrigeration plants