Hangzhou Shiyang is located in Hangzhou Cross-Border E-Commerce Center supported by our government.Our specialty products are all kinds of thermos.We are one of the main thermos suppliers from China.We have factories, professional designers and dedicated team services, and we have built factories since 2006.We offer a one-year warranty on this product, and if the product is of poor quality, we will issue a full refund. We provide after sales service. We are looking for long-term partnerships.