Guangzhou SURE UP is a professional manufactory which have 15 years experience in manufacturing vacuum flask.Our factory is the earliest one of factories in China whom producing for a long time among with very professional knowledge in the production and quality control of the vacuum flask.As our production process is different from other factories, price costs of our products compared with other factory’s that will be a little bit higher.But if you focus on goods quality,then , our company will be your smartest choice for you.