Mechanical Seal Rubber dust seal 1. Material: PU, Epdm 2. Color: ... internal (rod seal), external (piston seal), symmetrical or axial seal. With the internal (rod) seal, the seal is fit into ... continually gaining new knowledge which it incorporates into product development. 4) In this way, the ... seal:TCN,TCV Metallurgy appropriative seal: SB, MOY, MG, MG7, TC, TB, SC, SC5, Y, VR, TCN, ZF, OKC3. Product ...