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发明名称
GAS CIRCULATION SYSTEM FOR USE IN CONTACT UNIT HEAT EXCHANGERS OF A SULFURIC ACID PRODUCTION PLANT
摘要
申请公布号
PL263170(A2)
申请公布日期
1988.01.07
申请号
PL19860263170
申请日期
1986.12.20
申请人
发明人
分类号
C01B;C01B17/80;(IPC1-7):C01B/
主分类号
C01B
代理机构
代理人
主权项
地址
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