Additional tax points are required for invoicing all goods in our store {For more information, please contact Customer Service}, PET material is resistant to 40 degrees, cross-border is very suitable, the price is cheaper, this material is environmentally friendly and not easy to break! Foreigners like to drink normal temperature water, so this material is very suitable, and PC material is suitable for domestic, high temperature resistance, not easy to break, because Chinese people like to drink boiled water!