... , vacuum vulcanizing press, injection machine, frozen trimming machine, automatic oil seal lip lathe, and capacity for their tool and dimension ... conditioner seal, HA vacuum cleaners etc- All kind of material: Silicone, PA, Viton, EPDM, Nitrile etc. or PTFE and PU ... Nylon, ABS, bakelite, polyoxymethylene etc1. Mechnical Oil-seal Skeleton oil seal, U -oil sea, J-oil seal, L-Oil seal, V-ring, Y-ring, Z ...