... . Quality certificate: ROHS. 2. Materials: NBR, NR, FPM...etc 3. Use for all machines,size:50-630 PRODUCTION MATERIALSR:good resilience ... resistance.FPM:high tensile strength,good tearing property,no change in property from -70--300 centigrade.IIR: good heat resistance, ... ,FDA,SGS,UL.9.Application: Auto,Household Appliances,Electronic products,Machine, Armarium,Toy etc10.Lead time of goods:1-2weeks for ...