... Good air-proofness & heat resistance 3. Hardness: 30~90 shore A Advantages: Material NBR, NR, EPDM, FKM, SBR, Silicone, Neoprene ... are availableMaterial Temperature Range: -150F to 550F, it depends on material. See Material Performance Data for specific information. FUSHIYUAN Our company ... everything goes smoothly, the holistic process come to an end and the order waits to be shipped out, or we find out ...