... -18) Material:NBR,EPDM,SILICONE,VITON,NR...... Size:AS568 and PG series,all size we can do... Rubber seal (LRD-18 ... .Material: NBR,EPDM,SILICONE,VITON,NR......2.Size: AS568 and PG series,all state standare and non-state standard sizes are ... be hesitate to contact us if you need them AS568& P&G series Rubber seal (LRD-18)