the backbone of all by the "Shanghai hazardous chemicals workers in the examination"

February 23, the backbone of the company's technology, Wang Chao, Bao Guirong, Yaojiang Wei attended the "Shanghai dangerous chemicals workers in the examination", and staff through. February 15 before they took part in the "hazardous chemicals in Shanghai employees safety training", training them to study diligently, carefully review the after-school, down to earth to do to learn the knowledge prison, learned it.