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鋼管の国標GB 3087、8163、8162、12459の違いは何ですか?

2016-04-08View Original

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これだけ多くの基準がある中で、どれの適用範囲が最も広いのか
Reply #22016-04-08
GB8163、GB9948、GB3087、GB6479のそれぞれの違い - Discuz!によって提供されています。http://bbs.hcbbs.com/thread-1192595-1-1.html
Reply #32016-04-08
各基準を見てみれば、見れば何を意味するのか、大まかな違いがわかります
Reply #42016-04-14
これは基礎的なものですが、興味があれば参考用に標準ファイルをお送りします。ダイレクトメッセージでご連絡ください。

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