| 摘要 |
The cushion casing (24) is cast with a cavity (54) open at one side, into which a core (46) is inserted. This has elevations, defining a gap (60) surrounding the core. Into the gap, a coating material is cast, filling it and bonding-in the core. Preferred features: The casing is a reactive foam, as is the core. The core has penetrations (52). The gap is filled with a hard coating material.
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