Sheng chan jiao qi guan kong

Ben shu cong qi ye sheng chan de ge ge ceng mian dui jiao qi kong zhi jin xing chan shu, Bing ti chu xu duo zai shi jian zhong xing zhi you xiao de fang fa, Ke xue he li, Jian dan shi yong. Tong shi, Jie he guo nei wai zhu ming qi ye de guan li jing yan, Zai qi ye sheng chan ji hua he gao xiao lü sheng chan fang mian rong ru jiao qi guan li si xiang, Wan shan le jiao qi guan kong de ti xi.