Minimalism which is the continuity of constructivism and where the notion of beauté́ is abolished, it does not exist/no longer exists, use of industrial materials, the artist does not create by his work, he only gives directives, it is industrially made and he does not intervene at all during its creation most of the time. In spite of the desire of minimalist artists to be neutral, they will never succeed in doing so because art cannot be neutral.
"Refers to a trend in contemporary art which reduces the work to forms of extreme geometric simplification, as well as to elementary modalities of material or colour". (Larousse dictionary)
"Minimal art is based on several principles, such as repetition (the series), combinations and variations of abstract forms. The structures are elementary and made with simple materials. The works are generally monochrome". (site of Grand Palais, Paris)
Robert Morris "Box with the sound of its own making" 1961, a wooden box that diffuses the sound of its own making, a link between the object of manufacture and the finished object.
Dan Flavin and his installation in memory of Tatlin
https://www.artistsnetwork.com/magazine/donald-judd/
https://www.grandpalais.fr/fr/article/lart-minimal