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ETAG 012 Guideline for European technical approval of Timber frame and log prefabricated building fits.
ETAG 012欧洲技术标准指南-木材框型支架和原木预制安装建筑套件。
youdao
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ETAG 012 Guideline for European technical approval of Timber frame and log prefabricated building fits.
ETAG 012欧洲技术标准指南-木材框型支架和原木预制安装建筑套件。
youdao