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Application filedfiledCritical
Priority to JP1990072586UpriorityCriticalpatent/JPH0726008Y2/ja
Publication of JPH0433417UpublicationCriticalpatent/JPH0433417U/ja
Application grantedgrantedCritical
Publication of JPH0726008Y2publicationCriticalpatent/JPH0726008Y2/ja
Improvements in or relating to Apparatus for Bending and Edge Portion of Sheet Metal Elements to be Used in the Manufacture of Tubes, Boiler Shells or the like