Assertion: enamel | /r/HasProperty | laid in a number of layers
Facets:
Source sentences:
text: It was then that the following were built: the stamping room where metal sheets were processed, prepared and pressed, the deacidification facility (varnishing) where the vessels were bathed in a solution of sulfuric acid to remove all impurities and grease, and the enamel shop, where enamel was laid in a number of layers: the priming coat first, then the colour, and finally another protective coat.