... , GERMAN AND ETC. A Glimpse of Qingfeng Service Provide Qingfeng Performance In Recent Two Years CLIENTPROJECT ... , Manufacture, Erection Debugging & Start-UpXinhua Pharmaceutical (Shouguang) Co.,Ltd.30kt/a reducing agent deviceTurnkey ProjectDesign, Manufacture, Erection Debugging ... CNAS 03809Q21763R0M Design, manufacturing, and after-sales service of special sulfuric acid and coal gas chemical ...