Product Description. Ch. 50 Silk. 5004.00 Silk yarn (other than yarn spun from silk waste) not put up for retail sale.
... in order to check that products imported under the quotas conform to the product description laid down and that the tariff quotas are complied with ...
This applies not only to construction products, but also to construction works or parts thereof, where the requirements also have an influence on the Internal Market (e. g. resistance to fire for assemblies not covered by product specifications).
