※ This video is part of the <Extreme Job - Fireworks> broadcast on October 20-21, 2010. ▶Liuyang, the city of fireworks. The fireworks used in fireworks are called 'fireworks' (煙火). Liuyang City, located in Hunan Province, China, is called the City of Fireworks and is the world's leading fireworks market. There are about 1,500 fireworks factories, and 90% of the total population works in the fireworks industry, making fireworks an indispensable business for Liuyang City. Over 70 fireworks are made by hand! Even a small amount of heat from friction can ignite a fire, and a large impact or noise can cause an explosion, so you must be very careful and tense while working! ▶The secret hidden in fireworks, the star production process Fireworks that burst into various shapes in the sky! The secret lies in the ingredients contained in the fireworks. The main ingredient of the fireworks, black gunpowder, is made by mixing potassium nitrate, sulfur, and charcoal in a certain ratio. Since there is a high possibility of explosion even from a small amount of static electricity, workers always pay attention to safety and work sensitively. When rice husk is mixed with black gunpowder and rolled in a mixer, a round 'star' is created. Depending on how it is arranged in the fireworks, the shape of the fireworks that explode in the sky will change. The star arrangement work where the shape of the fireworks changes depending on the worker's personality! The star arrangement process is an important key to unlocking the secret of fireworks. ▶ A gorgeous but dangerous fireworks test site The test to check the quality of the fireworks is conducted in an empty space with few people to prevent accidents that may occur. The power of the explosion varies depending on the fireworks. Therefore, an accident can occur if you lose your mind for a moment, so the nerves of the testers become more and more sensitive as the test is repeated. Fireworks that explode in bunches as if a war has broken out! But at that moment, a spark flew and set the grass on fire. The flames began to burn fiercely and spread sideways! If the fire spread to the lotus flowers lined up next to it, a major accident could occur. Will the workers be able to get through this situation safely? ▶ The most dangerous gunpowder mixing process in lotus flower production! The gunpowder mixing plant is located deep in the mountains because of the risk of a large explosion when mixing the materials used in making firearms. Workers load sacks of raw materials weighing over 300 kg onto wooden carts and move them across the mountain eight times a day. The gunpowder dust generated from sifting the gunpowder powder dozens or hundreds of times fills the workshop. That's why they cover their faces with hoods and masks as they work. They are prohibited from wearing synthetic fiber clothing that can catch fire due to friction, and must wear designated cotton clothing and shoes. The gunpowder that has been produced must be weighed and stored in a designated storage facility to prevent an explosion if a large amount is left together. Storing and managing the amount is not easy. ▶ The dangerous and arduous firearm manufacturing process, and the rewards they find within it! The people who make lotus flowers are veteran workers with more than 15 years of experience. The black gunpowder they touch is always at risk of explosion. Therefore, in case of an accident, only one person is assigned to work in one workshop to prevent damage to many people. The lonely and solitary work continues. The lotus flowers produced in Liuyang are of such high quality that they account for over 70% of the world's lotus market share. They live every day in tension and continue their work with pride, despite the danger that could occur at any time. ✔ Program name: Extreme Job - Lotion Worker ✔ Broadcast date: 2010.10.20~21 #TVRoboBoGolLaDunDocumentary