With an area of 1848 square kilometers, Jeju is the smallest "Dao" in South Korea, and also the largest "Dao" - 1/10 of Gyeongsang North Dao, and 1/4 of the second smallest "Dao" - Zhongqing North Dao.Asia Waterproof casing partner Zhongyuan valve fittings Jeju multinational business promotion site make up more Jeju regional knowledge: Jeju is oval in shape, and the overall terrain is flat, with Mount Hannah in the middle. The cultivated land in Jeju is mainly concentrated in the coastal zone. Although the highlands above 200~300 meters above sea level have gentle slopes, most of it is used for grazing or idle.Waterproof casing supplier Zhongyuan valve fittings is located in Asia, bordering the Pacific Ocean, and shipping is convenient. Zhongyuan valve fittings has a service team for Asia Waterproof casing customers, which can provide reliable Waterproof casing metallurgy solutions for Jeju Waterproof casing customers!