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发明名称
VERFAHREN ZUR HERSTELKUNG ZWEI ODER MEHRSCHICHTIGEN METALLISCHER VERBUNDROHRE
摘要
申请公布号
DD269797(A1)
申请公布日期
1989.07.12
申请号
DD19880312719
申请日期
1988.02.08
申请人
VEB ROHRKOMBINAT STAHL- UND WALZWERK RIESA,DD
发明人
PIETSCH,JUERGEN,DD;KNAUSCHNER,ALFRED,DD;OTTO,JOACHIM,DD;LEIDERT,HANS-GEORG,DD;ENGELHORN,STEFAN,DD
分类号
B21B21/00;(IPC1-7):B21B21/00
主分类号
B21B21/00
代理机构
代理人
主权项
地址
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