... by SGS rigorous testing, RoHs, PAHs,eight heavy metals and other standards.Silicone products is 100% non-toxic,harmlessness,tasteless, ... air permeability, resistance to high and low temperature.It is can be used between -60 °C and 250 °C for a long ... tube (It is used for delivering liquid food, pharmaceuticals and biological products with working pressure.), medical silicone fittings, silicone ...