How old is the Guangdong Tower Crane Command Certificate?

Women are 50 years old and men are 60 years old. By inquiring about the training guide of tower crane command certificate in Guangdong Province (Shenzhen), it is known that the oldest age for the annual examination of tower crane command certificate in Guangdong Province is 50 years old for women and 60 years old for men. Tower crane is a kind of lifting equipment used in the construction site, also known as "tower crane", which is used to hang building raw materials such as steel bars, wooden beams, concrete and steel pipes in a way of section by section (referred to as "standard section").