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发明授权
US4269800A Process for the preparation of a composite mat consisting of a layer of mineral wool and a layer of steel wool 失效
用于制备由矿棉层和钢丝绒层组成的复合垫的方法

Process for the preparation of a composite mat consisting of a layer of mineral wool and a layer of steel wool
摘要：
Technique for making exhaust muffler lining comprising mineral fibers with metal fibers distributed therein toward the inner surface of the lining, the metal fibers being bound by the fiber binder carried by the mineral fibers.
摘要（中）：

用于制造排气消声器衬里的技术，其包括矿物纤维，其中分布在其中的金属纤维朝向衬里的内表面，金属纤维由矿物纤维承载的纤维粘合剂结合。

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