Title: Zhen zhi she bei yu gong yi
Description: Ben shu zhu yao jie shao zhen zhi he zhen zhi wu de ji ben gai nian, Zhen zhi ji de ji ben jie gou, Gong zuo yuan li he gong yi, Chang jian zhen zhi wu zu zhi de jie gou, Xing neng, Cheng xing zhen zhi chan pin de zhu yao sheng chan ji zhong, Bian zhi yuan li yi ji yi xie xin de fa zhan qu shi deng.