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China
联系人 Edwin
non pressure vacuum solar water heater. Prodct feather Inner diameter of tank: **0mm Vacuum tube length: 1.8m Vacuum tube no: XX pcs Water temperature in winter: *5°C Water temperature in summer: *5°C Material for heat-insulating layer: polyurethane integral bubbling. Material of inner tank : stainless steel, SUS****2B Material of outer tank: galvanized sheet Material of supporter: color steel
