PuYang YongAn Chemical Co.,Ltd (YACC) located in Nationally Designated Garden City, Nationally Hygiene City, Nationally Civilized City----Puyang, a city which is new and civilized oil, beautiful environment,convenient transportation. YACC is a company which is scientific decision-making, regular management, talents development and continuous innovation. YACC research and develop calcium process to produce pentaerythritol independently and sucessfully, and get the national patent. At present, YACC form capacity of pentaerythritol annual production 10000 tons, calcium formate 10000 tons,...