... , household rubber bush, medical rubber bush, etc. Description of Lower Arm Standard Rubber Bush: 1. Materials: can be NR, HNBR, MVQ ... , ACM, FLS, CR, SBR, SI, BR, IR, EPDM, IIR, PU,E/A, ECO, CSM, VITON, FKM, FPM, etc. 2. Characteristics: good ...