发明授权
US4499135A Gaskets 失效
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Gaskets
摘要:
A paper-based gasket is impregnated with a silicone resin to improve resistance to water/antifreeze mixtures. The gasket is made from paper essentially free from amine-containing material such as wetting agent and is bonded with a sulphur-free or sulphur donor free rubber binder.
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