The Acme CS1-D is tested and certified to ISO17712:2013 (E) and an excellent choice for extra peace of mind when sealing your goods. Due to being certified these seals are all marked with (H) to indicate they are meeting the ISO standard. The product is made from a high standard Die-Cast Aluminium material for the locking head and the cable part having an optional choice between Non Preformed Galvanized Steel or Non Preformed Stainless Steel giving further strength when comparing to the standard choice on the market place, Galvanized Steel. For further details please contact the Acme team.