... -fire,heat,oil resistance Rubber capProduct all kinds of Rubber cap Good quality and best prices 1. Unmatchable price2. Available material ... -toxic, good air-permeable, etc.5. Hardness: 25~95 shore A or IRHD as your request, tolerance is ± 5 shore ... A, and can be ±3 shore A for special products.6. Size tolerance: exactly upon ...