CN212616985U - 一种承插式塑料管道防内翻密封圈 - Google Patents
一种承插式塑料管道防内翻密封圈 Download PDFInfo
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Effective date of registration: 20221207 Address after: Room 903, No. 3, Yard, No. 81, Xianlie Middle Road, Yuexiu District, Guangzhou, Guangdong 510030 Patentee after: Huang Tengxin Address before: No. 3, 281 Lane, Hongan Road, Zhujing Town, Jinshan District, Shanghai, 201503 Patentee before: SHANGHAI YITONG TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20230515 Address after: 237000 No. 15, Chuangxin Road, high tech Industrial Development Zone, Yu'an District, Lu'an City, Anhui Province Patentee after: Anhui Yitong New Building Materials Technology Co.,Ltd. Address before: Room 903, No. 3, Yard, No. 81, Xianlie Middle Road, Yuexiu District, Guangzhou, Guangdong 510030 Patentee before: Huang Tengxin |