金属鋳造のための装置/(Apparatus for casting metal. a.Box-bellows, b. Cross-section of a smelthing-furnace, c. d. Model, e. Mould)
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  • 金属鋳造のための装置/(Apparatus for casting metal. a.Box-bellows, b. Cross-section of a smelthing-furnace, c. d. Model, e. Mould)

金属鋳造のための装置/(Apparatus for casting metal. a.Box-bellows, b. Cross-section of a smelthing-furnace, c. d. Model, e. Mould)

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