VACUUM TUBE WATER HEATERS USED IN SOLAR ENERGY WITH 3 LAYERS OF GLASS VACUUM CONTAINING OIL DERIVED FROM CRUDE OIL: MODEL: SHT09 58MM DIAMETER 1800MM LONG. NEW 100%
VACUUM TUBE WATER HEATERS USED IN SOLAR ENERGY WITH 3 LAYERS OF GLASS VACUUM CONTAINING OIL DERIVED FROM CRUDE OIL: MODEL: SHT09 58MM DIAMETER 1800MM LONG. NEW 100%