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Our History

In 2003,Nanjing Sanbang Metal Composite Material Co., Ltd. was founded.

In 2005,Nanjing Duble Metal Equipment Engineering Co., Ltd. was established.

In 2007,Huangshan Sanbang Metal Composite Materials, Ltd. was established.

In 2012,the company completed restructuring, and was fully transformed into a joint stock company.

In 2014,the company was successfully listed in the “new third board”, and Jiangsu Duble Engineering Co., Ltd. was established.