After the end of the 19th century, the mining of tin, tungsten and copper became the basis of the urban economy.Oruro Transmission joint friends, look at the Oruro region common sense compiled by the rest assured suppliers Zhongyuan valve fittings Oruro regional sales network site editor: The "twentieth century" mine in Aururo, South Liyaliagua, is the largest tin mine in the country. Aururo has tin smelting, textile, leather making, food, wood processing and other industries, the center of the national railway network, airports and universities.Transmission joint service provider Zhongyuan valve fittings is located in the Eurasian continental plate, bordering the Pacific Ocean, and shipping is convenient. Zhongyuan valve fittings has a service team for Oruro Transmission joint customers, which can provide reasonable Transmission joint coal gas solutions for Oruro Transmission joint customers!