http://www.chengdu-detong.com/wp-content/uploads/2016/04/DSC_0695_small.jpg6641000adminhttp://cdn.chengdu-detong.com/wp-content/uploads/2016/04/logo_noText_h300_png24-495x300.pngadmin2016-04-29 20:43:242016-04-29 20:48:39Training on African Rural Environment and Energy Technology