| 摘要 |
PROBLEM TO BE SOLVED: To provide a tubular protection cover 1a for easily and tightly covering a joint portion even in the state of covering a header with a cylindrical temperature retaining material. SOLUTION: The tubular protection cover 1a for a connection pipe comprises a cylindrical joint cover part 11 formed at one end with its inner diameter to cover a joint to which the connection pipe is connected. The joint cover part 11 has a cut-off slit 11a formed in an approximate saddle shape along the front end wall face. COPYRIGHT: (C)2009,JPO&INPIT
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