| 发明名称 |
Metal tube and its production method |
| 摘要 |
A small diameter metal tube whose inner surface is smooth and its production method are provided. The metal tube has an inner diameter of up to 1.0 mm and its inner surface has a maximum height difference (Rf) in the surface roughness of up to 3 mum.
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| 申请公布号 |
US6915821(B2) |
申请公布日期 |
2005.07.12 |
| 申请号 |
US20020283291 |
申请日期 |
2002.10.30 |
| 申请人 |
OKANO KOGYO CO., LTD. |
发明人 |
OOYAUCHI TETSUYA;OKANO MASAYUKI |
| 分类号 |
F16L9/02;B21C37/06;B21C37/08;B21C37/083;B21D5/01;B21D51/18;B21G1/08;(IPC1-7):F16L9/00;B21D51/10 |
主分类号 |
F16L9/02 |
| 代理机构 |
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代理人 |
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| 主权项 |
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