Crown Sheetmetal Ltd specialises in the design and manufacture of stainless steel process vessels for the wine, dairy and food processing industries. Founded in 1974 with a workshop in Invercargill, New Zealand, the company joined the NDA Group in early 2008 and has since grown to incorporate a workshop in Blenheim (previously Truform, a joint venture between NDA and Crown Sheetmetal).The Invercargill workshop covers 3, 500 sq. metres. A new high bay extension, opened in May, 2009, allows vessels up to 60 tonnes and 19m high to be built more efficiently. The facility in Blenheim was also enlarged in early 2009 and features a high bay for manufacture of wine tanks.Crown Sheetmetal produces wine holding tanks in various diameters and body lengths with optional glycol cooling and insulation. Tank sizes vary from 2, 500 litres to 540, 000 litres and are either plinth mounted or free standing.