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2020-03-09View Original

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大家好,请问采购GB/T 12459的管件,如弯头,三通等,壁厚允许偏差按照什么标准检验呢?一般管道标准中是有钢管外径,壁厚允许偏差的,但是查了很多标准,没有找到管件的壁厚允许偏差标准。还望各位师傅指点,最好能提供相关标准规定,在此感谢。
Reply #22020-04-30
标准书里有 0.875
Reply #32020-05-04
您好,请问是哪个标准哪一条款呀,我找了好久没找到
Reply #42020-05-08
不清楚,学*下,目前我们验证材料正负偏差百分之5
Reply #52020-05-09
就在GB/T12459里面。。。看得一点都不仔细。。 GB/T12459-2005 表13 GB/T12459-2017 8.2条
Reply #62021-11-11
有没有上限的偏差范围?

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