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Specification:
1).Vacuum tube: 58mm*1800mm,High borosilicate glass,hardness 3.3, with Al-N-AL coating
2). Inner tank: Food grade SUS304-2B stainless steel,0.4mm thick
3).Outer shell: Aluminium zinc painted steel plate,strong and anticorrosion effectively welded by argon arc, 0.4mm thick; or stainless steel,0.4mm thick
4).Insulation layer: Imported polyurethane integral foaming with pressure and best density of 38 kg/m3 ,55mm thick,without freon
5). Frame: Galvanized steel with plastic spraying,1.5mm thick
6).Heat preservation: 72 hours
7).Temperature heat: 45-95 degree centigrade
8).Seal: silicone rubber polymer
9).Fastness: stainless steel screws

10)Solar absorptance 93%;heat emittance 7%

11)Tank capacity:135,150,165,200,250,300Liter

12)Product Weight:about 72,82,98,110,136,156Kg