本规范涵盖以薄片和卷的形式存在的毡毛纤维。本产品通常用于不压缩毛毡的装置中的保油，用于输送低粘度或轻质油，以及垫圈、衬套、灯芯和其他需要耐磨损的零件需要异常强度和硬度的情况，但使用不限于此类应用。

This specification covers felted wool fibers in the form of sheets and rolls. This product has been used typically for oil retention in installations which do not compress the felt, for feeding low-viscosity or light oil, and where unusual strength and hardness are required for such parts as washers, bushings, wicks, and other parts where resistance to wear and abrasion are required, but usage is not limited to such applications.