CN103225719B - 一种内壁具有环氧保护层的内衬式预应力钢筒混凝土管 - Google Patents
一种内壁具有环氧保护层的内衬式预应力钢筒混凝土管 Download PDFInfo
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- CN103225719B CN103225719B CN201310190348.7A CN201310190348A CN103225719B CN 103225719 B CN103225719 B CN 103225719B CN 201310190348 A CN201310190348 A CN 201310190348A CN 103225719 B CN103225719 B CN 103225719B
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CN201310190348.7A CN103225719B (zh) | 2013-05-21 | 2013-05-21 | 一种内壁具有环氧保护层的内衬式预应力钢筒混凝土管 |
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CN103225719A CN103225719A (zh) | 2013-07-31 |
CN103225719B true CN103225719B (zh) | 2015-06-24 |
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CN2486807Y (zh) * | 2000-12-22 | 2002-04-17 | 中国石油天然气集团公司 | 减阻耐磨内涂层的输气管 |
CN101349370A (zh) * | 2007-07-16 | 2009-01-21 | 天津万联管道工程有限公司 | 塑料内衬筒承插口预应力钢筋混凝土管 |
CN102533051A (zh) * | 2011-12-28 | 2012-07-04 | 大连铭洋甲板敷料有限公司 | 一种船用环氧敷料 |
CN202629365U (zh) * | 2012-06-29 | 2012-12-26 | 邢士波 | 承插口热浸锌处理的内衬式预应力钢筒混凝土管 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Lined prestressed steel cylinder concrete pipe having epoxy protective layer on inner wall Effective date of registration: 20170523 Granted publication date: 20150624 Pledgee: CITIC Bank, Limited by Share Ltd, Zibo branch Pledgor: Shandong Longquan Pipeline Engineering Co., Ltd. Registration number: 2017990000431 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190723 Granted publication date: 20150624 Pledgee: CITIC Bank, Limited by Share Ltd, Zibo branch Pledgor: Shandong Longquan Pipeline Engineering Co., Ltd. Registration number: 2017990000431 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Lined prestressed steel cylinder concrete pipe having epoxy protective layer on inner wall Effective date of registration: 20190815 Granted publication date: 20150624 Pledgee: CITIC Bank, Limited by Share Ltd, Zibo branch Pledgor: Shandong Longquan Pipeline Engineering Co., Ltd. Registration number: Y2019370000011 |