CN209910444U - 双o型圈密封结构的换热器 - Google Patents
双o型圈密封结构的换热器 Download PDFInfo
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Denomination of utility model: Heat exchanger with double O-ring seal structure Effective date of registration: 20220822 Granted publication date: 20200107 Pledgee: Bank of Communications Co.,Ltd. Huangshi Branch Pledgor: HUBEI DEFENG HEAT EXCHANGER CO.,LTD. Registration number: Y2022420000267 |
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Denomination of utility model: Heat exchanger with double O-ring sealing structure Effective date of registration: 20230411 Granted publication date: 20200107 Pledgee: Bank of Communications Co.,Ltd. Huangshi Branch Pledgor: HUBEI DEFENG HEAT EXCHANGER CO.,LTD. Registration number: Y2023420000157 |