冷门赚钱行业 ER、MEIJUN：CHAOSHIDEKONGQISHIYOULIYUMEIJUNSHENGCHANGDE，WENDUZAI25-30DUHESHIDU75%-95%DESHISHIFEICHANGLIYUMEIJUNSHENGCHANGDE，MEIJUNZHONGSHIHANYOUDALIANGDESHUIFEN，DUIYUYIXIEDUOKONGDEJUEYUANCAILIAO，HUIDAOZHIJUEYUANJICHUAN。