Chenghai district sincere plastic toy factory. In official website, the recruitment of Chenghai Sincere Plastic Toy Factory has a recruitment announcement for extended staff, so Chenghai recruited extended toy factory as Chenghai Sincere Plastic Toy Factory. Extension is a position on the production line. The production line is called "pull" in the factory Each pull has someone in charge, and the person in charge is called "elongation".