... to your drawing or samplesMatetialNBR, NR, FPM ,EPDM ,SBR ,SR ,CR, HNBR, IIR, PTFE, Silicon, etc. Can choose on your requirement ... lastest priceAs a manufacturer ,our price are competitiveNBR rubber diaphragm for pumpSealing rubber diaphragm for pumpNBR rubber diaphragm for pump1) Available material : material for NBR,FKM ...