CN210118542U - 用于管道的中空复合降噪结构 - Google Patents
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CN110043720A (zh) * | 2019-03-28 | 2019-07-23 | 北京朗新明环保科技有限公司 | 用于管道的中空复合降噪结构 |
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CN110043720A (zh) * | 2019-03-28 | 2019-07-23 | 北京朗新明环保科技有限公司 | 用于管道的中空复合降噪结构 |
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Address after: 100039 6th floor, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee after: Guoneng Lang Xinming Environmental Protection Technology Co.,Ltd. Address before: 100039 6th floor, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee before: BEIJING LUCENCY ENVIRO-TECH Co.,Ltd. |
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Address after: 100039 6th floor, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee after: Guoneng Water Environmental Protection Co.,Ltd. Country or region after: China Address before: 100039 6th floor, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee before: Guoneng Lang Xinming Environmental Protection Technology Co.,Ltd. Country or region before: China |