A staple is a type of two-prong fastener, usually metal, used for joining or binding materials together. There are staples for stationery and furniture use.
Ideal for the production of storage tanks and reservoirs, galvanized baths, fencing boards, as well as for use as a facing material and material of advertising structures.
General purpose polystyrene, non-impact resistant, block, sometimes called “crystalline”, PSE, PSS or PSM marking depends on the method of preparation.