Crunchyroll takes you behind the scenes of this season’s biggest show, Dr. STONE. Meet the Producer, Shusuke Katagiri, and Director, Shinya Iino, as they take us through the process of creating a hit anime. From storyboards to screens, see the making of an episode of Dr. STONE.
where they go through the 
process of making glass.
.حيث يقومون بعملية صنع الزجاج
wo sie Glas herstellen.
donde ven el proceso de hacer vidrio.
donde se ve el proceso de hacer vidrio.
le manga décrit
comment fabriquer du verre.
il processo della fabbricazione del vetro.
Onde eles passam pelo 
processo de fazer vidro.
Здесь описан процесс создания стекла.