From the old school printing machine to the high-tech 3D printer, the makers of the Brooklyn Army Pier showed their products on Thursday to mark the 100 th anniversary of the pier. Lee Spring showed off its metal Spring product of the same name. The company also had a history of about 100 in Brooklyn before moving its manufacturing here. \"Brooklyn army pier ensures that the only spring manufacturer in New York City continues to produce products here,\" said Steve Kempf, CEO of Lee spring . \". At present, there are more than 100 manufacturers on the dock, which is far from the original purpose. In 1918, the federal government broke ground and built a 4 million-square-foot complex at Sunset Park as a supply base and military warehouse. Countless soldiers passed by here, most notably the Elvis Presley who was sent to Germany in 1958. \"The complex was actually built by Cas Gilbert, who was the same person as the architect of the Woolworth Building. Think about vertical and horizontal. This is great. \"Our Bones today,\" said Alicia Glen, deputy mayor of New York . \". The Army retired in 1960s. Until 1981, when the city bought the property and began using it as an industrial and manufacturing park, it had been vacant for several years. Blasio administration is spending more than $0. 2 billion to upgrade the facility and improve its position as a manufacturing center. \"We have this place and we will make it great. \"We will make it affordable,\" said james Patchett, president of New York economic development . \". This is good news for city councillor Carlos Menchaca, who spoke about the crisis of affordability in his region. \"We feel this way in the housing space. But we also feel that in business, industry and manufacturing . \" The Brooklyn army base added nine tenants last year. As part of the centennial celebration, the city officially put in 500,000 square feet of newly renovated space on Thursday. \"Start with real estate. You don\'t want to have to keep looking for your next step because of other forms of development. That\'s why it\'s so exciting, \"Glenn said. City officials hope to lay the foundation for the next century.