Description: Place of Origin:ZheJiang China (Mainland)Brand Name:YMProperty:Ozone and chemical resistance,High temperature resistance,Suitable for different weather conditionsColor:Black,blue,red,or other colour is available ,according to your requirements.Material:NBR,CR,SBR,EPDM,IIR,NR,EP,Silicone, Silicone,Viton etc. Hardness:30-90 Shore A..