CN217272057U - 一种固定球阀密封部位防尘结构 - Google Patents
一种固定球阀密封部位防尘结构 Download PDFInfo
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Inventor after: Li Haiping Inventor after: Li Huanyu Inventor after: Tong Yongyuan Inventor after: You Yunfeng Inventor after: Gong Fenglei Inventor after: Shen Jun Inventor before: Li Haiping Inventor before: Li Huanyu Inventor before: Tong Yongyuan Inventor before: You Yunfeng Inventor before: Gong Fenglei Inventor before: Shen Jun |
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