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  Product characteristics:Using tri-high-vacuum tube, with strong heat absorption and fast heat collecting. High performance tube collect more quantity of heat. Adopting  ternary super-absorption technology, with stronger heat power in winter, better collecting effectivity; Using SUS304BB food-grade thickened stainless steel, with super anti-corrosion and longer service life. Advanced manufacture equipment, entire high-pressure polyurethane foam. The same heat-preserving technology with Refrigerators.Best core accessories, longer service life, original standardized components, antifreezing performance matching with the overall performance, reaching the bestness to ensure helpful in winter.Special antifreezing pipeline design resolved the difficult problem of pipe freeze and blockage in low temperature. longer service life with anticorrosive inner container.