... 第二道压缩环 Second compression ring 填料箱压缩环 Pressure ring for Stuffing box 第一压缩环 top compression ring ...
基于54个网页-相关网页
... 喉部环 填料衬环 throatring 喉部垫环，填料衬环 throat ring 填料函压环 pressure ring for stuffing box ...
基于42个网页-相关网页
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