... Co., Ltd, set up in 1992 2. Nanhai Chumboon Iron-Printing and Tin-Making Co., Ltd, set up in 2005 3. Guangzhou Chumxin Metal Products Co., Ltd ... , set up in 2010 4. Guangzhou Chumboon Tinplate Trading Co., Ltd, set up in 2006 5 ... . Tianjin Chumboon Iron-Printing & Tin-Making Co., Ltd, set up in 2010Our company has been speciliezed in iron ...