European foreword This document (EN 12608-1:2016/prA1:2019) has been prepared by Technical Committee CEN/TC 249 ??Plastics??1@ the secretariat of which is held by NBN. This document is currently submitted to the CEN Enquiry. 1 Through its working group WG 21@ ??Profiles for windows and doors?? (secretariat: DIN).
EN 12608-1/PRA1-2019由CEN - European Committee for Standardization 发布于 2019-04-01,并于 2019-05-03 实施。
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