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1 твёрдая постель
1) Engineering: vented moulding pit2) Foundry: occasional moulding pit
См. также в других словарях:
Sand casting — Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. It is relatively cheap and sufficiently refractory even for steel foundry use. A suitable bonding agent (usually clay)… … Wikipedia