Zhāng Guóqìng shīfu zài zhège gōngchǎng gōngzuò le sìshí nián.
Master Zhang Guoqing has worked at this factory for forty years.
Tips
culture
国庆 ('national celebration', i.e. National Day) is a classic patriotic given name for people born around October 1st or during the early PRC era. It's essentially the Chinese equivalent of naming a kid 'America'.