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sh3405とhg20553は同じ壁厚シリーズなのに、なぜ壁厚が違うのでしょうか?

2018-03-21View Original

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DN100の管はsch10シリーズで、3405の壁厚は3.05、20553は3.2です
Reply #22018-03-21
国内基準にはこの問題があるので、はっきり書けばいいのです
Reply #32018-03-21
ああ、では一般的にはどの基準で判断されるのですか?
Reply #42018-03-23
プロジェクトがどの体系を使っているかに応じて、それに合わせて選べばいいよ
Reply #52018-03-25
“DN100の管はsch10シリーズで、3405の肉厚は3.05、20553は3.2インチ。~~~~3405のDN100は114、20553は108です~~~

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