1.NBR,EPDM,CR,SBR,Silicone,Viton,PU 2.Sound qualtiy,low price $0.01-3 3.As client's samples or drawings Custom made, up to your requirement. Your drawings or samples are welcomed to us.Specification:1.Silicone,Imported Germany Wacker.2.Hardness:30-90A3.Non-standard:As per client's samples or drawings.4.Function: oil, acid ,high /low temperature and agingresistance, sound sealing function.5. ...