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Português Translations » 【仪表自控交流圈】 » Problema de classificação dos materiais para instrumentos

Problema de classificação dos materiais para instrumentos

2017-06-24View Original

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Os materiais utilizados em instrumentos são divididos em materiais principais e materiais auxiliares. Pergunto: com base no que é feita essa divisão?
Reply #22017-06-24
Existe algum **padrão ou norma**?
Reply #32017-06-25
Petróquímica – Instalação – Orçamento padrão (quinto item: instrumentos de medição).

Translated at 2026-08-04 02:18:27

Original: https://bbs.hcbbs.com/thread-1800231-1-1.html

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