PN M77300 ArkusZ04-1973 House keeping enemel utensils made trom iron-plate Kinds and methods of enemel coating Determination of resistance to boilling water and water yapour
1973PN M77300 ArkusZ04-1973 House keeping enemel utensils made trom iron-plate Kinds and methods of enemel coating Determination of resistance to boilling water and water yapour