... F452 from Japan,KBA four color printing machine from German and CTP making plate machine 5. QC dept consists of IQC, ... Chumboon Iron-Printing & Tin-Making Co., Ltd, set up in 1992 Nanhai Chumboon Iron-Printing and Tin-Making Co., Ltd, set up in 2005 ... Guangzhou Chumxin Metal Products Co., Ltd, set up in 2010 Tianjin Chumboon Iron-Printing & Tin-Making Co., Ltd, ...