Luban (507 BC-444 BC), surnamed Ji, is a famous class. He was called Gong Bo, Gong Bo and Bo Ban, and was honored as Gong Bo Zi. Also known as Luban or Lu, it is used to be called "Luban". Lu, now Tengzhou, Shandong. Born in the 13th year of Zhou (507 BC) and died in the 25th year of Zhou Pingzhen (444 BC), he was an outstanding inventor in ancient China. His name and story have been circulated among the broad masses of the people for more than two thousand years. Chinese folk craftsmen all respect him as the founder.