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2070
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2012
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278
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2025-08-14 04:35
2731
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2025-08-14 04:26
2608
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2025-08-14 04:08
933
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2025-08-14 03:49
1585
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1866
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1058
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1841
Standard springs are made of carbon steel. We use stainless-steel springs for our GR and GRST oil seals made from FKM rubber. In some rare cases, an O-ring is even used as a spring element. Standard PTFE lip seals are not fitted with springs.


spark plug factory. Spark plugs undergo testing for resistance, durability, thermal performance, and overall functionality before they are approved for use in vehicles.
Cover the valve gear with a clean cloth to prevent dirt getting into the working parts of the engine.

Metal O.D. wall
(with a reinforcing inner metal case)