1. High-quality materials: stainless steel thermos cup is usually made of food-grade 304 stainless steel material, harmless to human health, durable material, with corrosion resistance, high temperatu...

1. Material selection: Select the appropriate stainless steel material, generally using food-grade 304 stainless steel, with corrosion resistance, high temperature resistance, wear resistance characte...

1. Insulation function: The thermos cup can maintain the temperature of the hot drink, so that it can stay hot for a long time, and the cold drink can stay cold for a long time. It can quickly fix the...