今回は引張試験用のテストピースだナベ！ ＦＣ鋳鉄のテストピースは この専用の型で砂型をつくるナベ。 なんか…外国のコンセントみたいナベ？ 型から外してあらかじめ切り分けたものがこちらナベ。 そ […]
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