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Type of Vacuum tube: 47mm*1500mm 58mm*1800mmThe material of inner tank: SUS304-2B stainless steel( food grade)The material of outer tank: drawbench silver steel Insulation Layer: Integrated foaming Polyurethane Thickness : 50 mmThe material of Frame: Galvanized steelFastening Piece: Stainless steel screwSeal Ring: macromolecule silicon ring
2. Tube specification: Φ58mm*1800mm*21 Φ58mm*1800mm*24 Φ58mm*1800mm*30 Φ58mm*1800mm*36 3. Tube coating: ALN/AIN-SS/CU
4. Tank capacity: 210L 240L 300L 360L
Evacuated Tube Solar Water Heater