30 provinces in China almost have lead zinc resources,relatively concentrated in 5 mining areas of Lanping and Qingling in the west of Yunnan,Qilian,Nanling,Chuandian as well as 5 major mining areas in Langshan,which are areas rich in lead zinc resources in China.Lead resources are mainly in Yunnan,Guangdong, 30 provinces in China almost have lead zinc resources, relatively concentrated in 5 mining areas of Lanping and Qingling in the west of Yunnan, Qilian, Nanling, Chuandian as well as 5 major mining areas in Langshan, which are areas rich in lead zinc resources in China.Lead resources are mainly in Yunnan, Guangdong,