XULONG has been founded in 1980s. After more than 30 years hard work, Xulong becomes a famous brand in special valve machinery industry, especially has a leading position in China for pneumatic conveying system valves machinery industry. Xulong Group has one headquarter office located in Wenzhou city and two main factories: Hefei Xulong Machinery Co., Ltd. (in Hefei city) and Shandong Zhending Machinery Co., Ltd. (in Qingzhou City). Xulong has extensive contact and cooperation with all of the first-class design institutes in China and many mainstream engineering corporations both in China and overseas.