ISO 643 2019 Steels — Micrographic determination of the apparent grain size

ISO INTERNATIONAL STANDARD 643 Fourth edition 2019-12 Steels Micrographic determination of the apparent grain size Aciers - Détermination micrographique de la grosseur de grain apparente Reference number IS0 643:2019(E) ISO @ IS0 2019 IS0 643:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 0111 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved

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本文档由人生无常于 2024-08-02 23:38:17上传分享