米国規格の対合式逆止弁と中国規格の対合式逆止弁の違い
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皆様、こんにちは！ 米国規格の対合式逆止弁と中国規格の対合式逆止弁の違いは具体的にどこにあり、価格に大きな差が出るのでしょうか？
こんにちは、米国基準の方が国際基準より少し高いですが、それほど大きな差ではなく、およそ5％程度です。 外観は主に外縁が異なるだけで、他は同じです。
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