| 发明名称 |
METHOD FOR SUPERFICIAL TREATMENT OF HIGH TEMPERATURE RESISTANCE TUBES AND TUBES SO TREATED |
| 摘要 |
<p>Method for superficial treatment of high temperature resistance steel tubes and tubes so treated, preferably for blowing tubes in metal fusion, characterized in that the steel tube is subjected to a coating of its external surface by means of fused and oxidized aluminium.</p> |
| 申请公布号 |
WO9012122(A1) |
申请公布日期 |
1990.10.18 |
| 申请号 |
WO1990IT00028 |
申请日期 |
1990.03.14 |
| 申请人 |
CIS FRIULI;PIVETTA, DOMENICO |
发明人 |
PIVETTA, DOMENICO;ULIAN, GIANPIETRO |
| 分类号 |
C21C5/46;C23C4/10 |
主分类号 |
C21C5/46 |
| 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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