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STN is a protected designation of Slovak national technical standards.
Piston rings. Half-tapered piston oil rings
Standard published on 1.6.1965
Selected format:Piston rings. Stepped piston oil rings
Standard published on 1.6.1965
Selected format:Piston rings. Stepped half-tapered piston oil rings with increased tangential force
Standard published on 1.3.1975
Selected format:Piston rings. Slotted piston oil rings
Standard published on 1.3.1975
Selected format:Piston rings. Slotted piston oil rings with increased tangential force
Standard published on 1.3.1975
Selected format:Piston rings. Tapered slotted piston oil rings
Standard published on 1.6.1965
Selected format:Piston rings. Tapered slotted piston oil rings with increased tangential force
Standard published on 1.3.1975
Selected format:Piston rings. Top-tapered slotted piston oil rings with increased tangential force
Standard published on 1.3.1975
Selected format:Piston rings. Trapezoidal piston pressure rings
Standard published on 1.3.1975
Selected format:Piston rings. Fixing of piston rings
Standard published on 1.7.1959
Selected format:Latest update: 2026-06-14 (Number of items: 2 282 206)
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