CN216590143U - 一种便于更换的烟道防火阀 - Google Patents
一种便于更换的烟道防火阀 Download PDFInfo
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Denomination of utility model: An easy-to-replace flue fire damper Effective date of registration: 20220830 Granted publication date: 20220524 Pledgee: Shandong Wucheng Rural Commercial Bank Co.,Ltd. Pledgor: Shandong huidongfeng Machinery Co.,Ltd. Registration number: Y2022980013823 |
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Date of cancellation: 20231218 Granted publication date: 20220524 Pledgee: Shandong Wucheng Rural Commercial Bank Co.,Ltd. Pledgor: Shandong huidongfeng Machinery Co.,Ltd. Registration number: Y2022980013823 |
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