... ) Materials: NBR, NR, FPM, MVQ, EPDM 2) Model:TC,TB,TA,SC,SB,MG,etc valve stem seal features: 1) Materials: NBR ... , NR, FPM, MVQ, EPDM 2) Characteristics: high/low temperature ... in rubber parts producing and mold developmentMaterialSilicone, NR, SBR, NBR., EPDM, CSM, CR, HNBR, VITON, AFLAS etc.(Make comparison and evaluation ...