... delivery & top quality 4) Professional service. Features of our rubber O-ring: · Working temperature: -100 to +300 degrees;· Hardness: 25~95 Shore ... tear resistance, Durable;· UL certification;· Rubber Material: NBR, HNBR, XNBR, EPDM, CR, NR, SBR, VMQ, FKM, LAS, FVMQ, FFKM, PTFE, PU, ECO, IIR ... , E7002HNBR55~90-55~150H7000, H8300VMQ25~90 -100~300 S7000, S7031 CR 30~90 -40~125 C7000 FVMQ 45~80-60~232 ...