发明名称 |
ABSORBED PANEL OF SOLAR HEAT AND MANUFACTURING METHOD THEREOF |
摘要 |
A sunlight absorbent and manufacturing method thereof is disclosed in which hemicircular bent portions are alternately repeated on an aluminum plate, a copper pipe is inserted into the bent portions, and a steel ball is forcibly passed through the copper pipe, thereby eliminating fluid loss within a the risk of cracks in the copper pipe to prevent leak of fluid. |
申请公布号 |
KR940003431(B1) |
申请公布日期 |
1994.04.22 |
申请号 |
KR19910020475 |
申请日期 |
1991.11.18 |
申请人 |
GOLDSTAR INSTRUMENT & ELECTRIC CO., LTD. |
发明人 |
NA, HYONG - JU |
分类号 |
F24J2/00;(IPC1-7):H01L31/04 |
主分类号 |
F24J2/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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