cylindrical water gauge packing的意思|示意
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圆柱形水表填料
cylindrical water gauge packing的网络常见释义
圆柱形水位表垫圈 ... 圆柱形通风帽：cylinder cowling 圆柱形水位表垫圈：cylindrical water gauge packing 圆柱形膨胀阀：cylindrical expansion valve ...