Original: Common types of matrices include : metal plates , usually copper or zinc , or polymer plates for engraving or etching ; stone , aluminum , or polymer for lithography ; blocks of wood for woodcuts and wood engravings ; and linoleum for linocuts .
Simplified: Pictures for prints can be cut into plates of metal , usually copper or zinc for engraving or etching ; stone , used for lithography ; blocks of wood for woodcuts , linoleum for linocuts and fabric plates for screen-printing .