1.Non-toxic,tasteless 2.Different color and size 3.Silicone rubber gasket quick supply 4.We offer OEM/ODM rubber waterproof gasket The bellowing is the detailed in formation of this product:1. Materials: NBR, HNBR ,SBR ,FPM ,CR , NR ,etc, just as your request.2. Temperature ranqe: -100-300 celsius degrees 3. Hardness: between 30-80 shore A 4. Color: black, transparent, green, red, yellow, etc 5. ...