Shanghai Wan Sheng Vacuum Flask & Vessel Co.,ltd are manufacturer focusing on vacuum flask since 1997 with our famous brand"MAY FLOWER".Now we have around 8 years of cooperation with industry giants such as thermos, alfi, Allogo etc and we have been business partner with many customers around the xxxxx quality of our products is same as that of industrial giants while we provide customer with unbeatable xxxxx R&D department design and launch several new types of products annually to meet the market demand especially for middle east xxxxx of those,we have firm relationship with customers and grow in the market together.We hope to be partner with your esteemed company cordially.