... resistance, Ozone resistance etc.Appearance of food grade silicone tube: Wall thickness of the tube is even ,smooth surface,no cracks,no air ... impurity, odourless and non-toxic.Application of food grade silicone tube: Food grade silicone tubecan be widely used in aviation, electronic ... Production process of food grade silicone tube: 1.Get the drawing of food grade silicone tube 2.Open the mould offood ...