Steel: is a very strong metal which is made mainly from iron. It is used for making main material of cook ware and cutlery. In the space, steel become a volume and meshes.

Wood (Bamboo): In Chinese kitchen, Bamboo is used many ways such as chopsticks, steamer etc.

Glass: As a glass container shows inside contents, glass makes a communication with other materials. Moreover, it could be overlapping the volume and space.