stainless steel vaccum flask ,colar bottle , eco-friendly , food grade material 304ss or 201ss ,with metal lid and so on Stainless Steel vaccum flask 1. Imported s/s 304 or 201 stainless steel, single wall, different kind of lids available.2. Certificate:BPA free, FDA certificate,Rohs,SGS, ISO900:2000 etc.3. Shaped by extrusion, seamless body, polished surface,various colors for body.Customer ...