ALEXANDER WINNING SOUTH  Africa's Labour Court on Tuesday ordered state defence firm Denel to pay workers outstanding salaries for May, June and July by Friday, Aug. 7, a copy of the court judgment showed. The case against Denel was brought by two trade unions, Solidarity and UASA, on behalf of their members after the weapons manufacturer did not pay salaries in full. Denel, which makes equipment ranging from armoured vehicles to missiles, has struggled to pay staff salaries amid a liquidity crisis aggravated by the COVID-19 pandemic. It is one of a number of struggling state enterprises the government has…