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Pergunto: de onde todos tiram as normas a serem seguidas durante os exames?

2016-07-05View Original

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Como no título, pergunto: de onde as pessoas tiram as normas a serem seguidas durante os exames? Emprestado, comprado? Quais normas são as principais que precisam ser seguidas?
Reply #22016-07-05
São todas normas muito importantes; se a empresa não as tiver, compre um livro sobre elas. As normas de petroquímica, as normas de construção e o hg20570 – esses três devem ser suficientes.
Reply #32016-07-05
http://shxch.997788.com tem vendas regulamentadas.

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Translated at 2026-07-28 20:59:56

Original: https://bbs.hcbbs.com/thread-1599626-1-1.html

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