Surface heat treatment of piston rings
System for sealing relatively movable elements
System for sealing relatively movable elements
Tank piston with improved seal and wiper
Tank piston with improved seal and wiper
Thin 3-piece oil ring
Two piece oil control ring with nitrided surface layers
Two-stroke internal combustion engine with oil ring
Unidirectional rod sealing ring for a hydraulic cylinder
V-shaped seal with anti-extrusion section
Wear compensating plunger-and-barrel seal for hydraulic fuel...
Wiper with integrated seal
Wiping and/or sealing element as well as process for sealing...
Wire material for coil expander and coil expander