1. rubber parts,RUBBER BOOTS,RUBBER RING,rubber seal,,rubber injector 2. Material: NBR 3. TS16949 certificates rubber parts,RUBBER BOOTS,RUBBER RING,rubber seal,,rubber injector1. Material: NBR,PTFE,NR,VITON,FKM,FPM2. diamensions: > 3MM3 color:meet to our customers4 Durometer: shore A 40-905 drawning or samples are available NBR Rubber Black seal o ring