... 100g/250g/500g/900g per box Bulk CTC black tea HACCP,GMP,QS WonFa can ... export more than 4000 tons of various CTC black tea per year , our CTC customers are everywhere in the world . ... WonFa has 3 kinds of CTC, the first type is for European market ,the second ... African market .every kind of CTC has several grades .The history of manufacturing CTC black tea for WonFa has 18 ...