Yu Lingyun and his son Yu Zhilin have been building replicas of the Transformers robots in a makeshift factory . The pair collect scrap metal from cars and use it to construct the huge models , which resemble Optimus Prime . Army of metal robots has recently been sold by the pair for 1million RMB , which is equivalent to £110,000 . Transformers films have been a success in China , with the latest film Age of Extinction achieving box office records .
Yu Zhilin and his son Yu Lingyun have been building replicas of the Transformers robots in a makeshift factory . The pair collect scrap metal from cars and use it to construct the huge models , which resemble Optimus Prime . Army of metal robots has recently been sold by the pair for 1million RMB , which is equivalent to £110,000 . Transformers films have been a success in China , with the latest film Age of Extinction achieving box office records .