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经营范围
发明名称
METHOD OF PREVENTING HYDROGEN BRITTLENESS
摘要
申请公布号
JPS52139628(A)
申请公布日期
1977.11.21
申请号
JP19760056552
申请日期
1976.05.19
申请人
HITACHI LTD
发明人
AI MITSUO
分类号
C23C18/16;C23C18/31;C23F13/00
主分类号
C23C18/16
代理机构
代理人
主权项
地址
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