... IIR,Neoprene/Chloropren,Hydrin,Epdm,FKM,Viton,Silicone and so on2)Characteristics: High/low temperature-resistant, ... wearing resistant,oil resistant3)Specifications:State standard and non-state standard sizes are available4)Colors:Black ... on automotive components,machinery components,medicial and bathroom facilities,househole electrical appliances and electronic instruments,etc.6)Hardness:30 ...