... materials: NR, SBR, BR, NBR, EPDM, IIR, CR, silicone, ACM, FKM (Viton) and more;2) Hardness: as per ... Good quality guarantee, reasonable price, and experienced engineers. OEM and ODM orders are welcome!With abundant practical experience ... moulds and products as per your requirement. We do OEM & ODM service, high quality, punctual delivery time ... Looking forward to your long term business. silicone product