... are appreciated Oilfield rubber packing, five piece set split ring for easy off and on at repacking of ... and on at repacking of stuffing boxDescription: Material: comply to RoHS, silicone or rubber (NR, SBR, NBR, EPDM ... , CR, HNBR, VITON, AFLAS and more)Hardness: 8 to 95 shore A, tolerance can be ±5 shore A, ... in any color as you wantMachine type: 50 to 400 tonsMolding service: we have our own mold ...