OCECO

GAUGE AND THIEF HOLES FOR OIL TANKS, VACUUM AND PRESSURE RELIEF VALVES FOR OIL TANKS, OIL STILL SAFETY VALVES, FLAME-ARRESTER CASINGS, FLAME SNUFFERS, OIL-TANK FITTINGS, PIPE FITTINGS, [ COUPLINGS, T'S, ELBOWS, HEADERS, OIL-PIPE-LINE LOCK BOXES, OIL PIPE-LINE FILTER COULMNS, ] OIL-TANK FREE VENTS, FLAME-ARRESTER UNITS, DOUBLE-ACTING PRESSURE AND VACUUM CONTROL VALVE, OIL-STORAGE CONSERVATION SYSTEM, VAPOR-CONTROL SYSTEM, MAN-HOLE COVERS FOR OIL TANKS, [ DOUBLE-FLANGE PIPE COLLARS FOR OIL TANKS ]