... delivery & top quality 4) Professional service. Features of our rubber products;Working temperature: -100 to +220 degrees;Hardness: 25~95 ... ;High tensile Strength, Wear and tear resistance, Durable;UL certification;Rubber Material: NBR, HNBR, XNBR, EPDM, CR, NR, SBR, VMQ ... 1050LF, 4079, 6375, 7075 Products that meet international standards:Product quality is our top concern, we check the quality very ...