Double-Layer Stainless Steel Vacuum Insulation Cup- “Ruling Stands”
Size: inner 304 stainless steel outer 304, the inner and outer walls are both 0.5 mm thick
Color: brown
Material: outer wall of the inner tank is copper-plated, the inner wall of the inner tank is electrolyzed
Features: vacuum insulation, heat preservation for 6-12 hours, ice preservation for 12-24 hours
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