annular packing的用法和樣例：
例句
- Standard NIBCO iron valves are furnished with Synthetic Fibers and Graphite packing, along with Synthetic Fibre gaskets.
標準美國尼伯科鑄鐵閥門(mén)配置合成纖維和石墨填料，以及合成纖維墊圈。 - Optional packing and gasket materials are available for a full range of service conditions.
可提供備選填料和墊圈材料，以滿(mǎn)足各種應用環(huán)境。
