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1.2mm厚的镀锌风管误差多少？

2025-03-16 02:36:14

推荐回答（1个）

回答1：

镀锌方矩管壁厚的允许偏差，当壁厚不大于10mm时不得超过公称壁厚的正负10%，当壁厚大于10mm时为壁厚的正负8%，弯角及焊缝区域壁厚除外。镀锌管国家标准及尺寸标准的国标： 1、GB/T3091-2015 低压流体输送用焊接钢管 2、GB/T13793-2016 直缝电...

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