Halifax - Workers at a Hargreaves Foundry celebrated their booming business with a challenge to ride a bucking bronco. Staff at Hargreaves Foundry in Water Lane, Halifax, got into 16 teams to take part in a fun contest. They took it in turns to compete in blackjack, Scalectrix and other games. The firm was marking an expansion, which has seen the building of a brand new warehouse. The company makes and…