Foundries are factories which create castings by melting down scrap metal into liquid form before being poured into a mould."It's the last one of these type of foundries in New Zealand. In 1970 there was about 50 or 60," Bob Austin of Austin's Foundry told Seven Sharp. Austin's father started the business back in 1920, before moving to the current site in Kensington, Timaru, a decade later The 96-year-old…