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· Lightweight Nature: PP plastic itself is a lightweight material, and when used in a double-layer configuration, the flask remains easy to carry around, making it suitable for various occasions.
· Reliable Insulation Performance: Thanks to the double-layer structure, these flasks can effectively keep hot drinks hot for several hours and cold drinks cold for a long time. This allows users to enjoy their favorite beverages at the desired temperature whenever they want.
· Safety and Non-Toxicity: PP plastic is a food-grade material that is non-toxic, odorless, and does not release harmful substances even when in contact with hot liquids. This ensures the safety of the beverages stored in the flask.
· Cost-Effective: Compared to vacuum flasks made of other materials like stainless steel, double-layer PP plastic vacuum flasks are generally more affordable, offering good performance at a lower price point.