... structure 3.custom color&logo is welcome 4.LFGB certified 5.350,500,750,1000ml features1.Material:a.double walls stainless steel ... ,spotrt canteen automobile cup,etc. We own a batch of high quality hechnical personnel;we also introduce advanced produc-tion equipments and ... together hand in hand . Looking forward our cooperation!!! 4 capacity high quality fashional stainless steel vacuum flask