... , polyoxymethylene etc1. Mechnical Oil-seal Skeleton oil seal, U -oil sea, J-oil seal, L-Oil seal, V-ring, Y-ring, Z-oil seal2. Hole seal3 ... seal4. Dust Seal parts5. Assembly Seal, Gaskets6. End Oil-seal7.Pneumatic Seal Ring8.Guide Ring,Coupling cushionGR diamond ring, MT diamond ring, Hexagon ring Oil seal ,Gasket, Diaphrgam ...