Several materials can be used to make the box : plywood , for one ; masonite , for another ; sheet metal , for a third 许多物质可以用来做这盒子：一种是合成木，别一种是硬质纤维板，第三种是金属板。
2.
Mir ? also experimented in a wide array of other media , devoting himself to etchings and lithographs for several years in the 1950s and also working in watercolour , pastel , collage , and paint on copper and masonite 米罗也用相当广泛的媒材来实验他的想法，在1950年代时有好几年都沉浸在蚀刻画及平版印刷之中。
