Silicone, presumably everyone not unfamiliar, it silicon raw materials come from rock to refine a kind of material.  environmental quality grade silicone  (SGS/RoHS), food grade silicone (FDA/LFGB), medical grade silicone (grade USP6 / IOS10993) three levels.

Environmental quality grade silicone  is mainly suitable for the remote control key, keys, cell phone, etc.

Food-grade silicone are mainly used in baby bottles, pacifiers, silicone travel bottle, daily food products.

Medical grade silicone are mainly used in medical field, like milk, foldable water bottle, cosmetic prosthesis, prosthesis, such as human body. is mainly suitable for the remote control key, keys, cell phone, etc.

Food-grade silicone products are mainly used in baby bottles, pacifiers, daily food products.

Medical grade silicone products are mainly used in medical field, like breast pasty, Cosmetic surgery prosthetic, prosthesis, such as human body the prosthetic.