Recently, the training course on tunnel engineering and technology for developing countries, hosted by the Ministry of Commerce and organized by Fujian Foreign Economic Cooperation Center, visited the production base of QUNFENG Machinery. Nearly 30 construction engineering technical experts and government officials from Costa Rica, Ethiopia and Nigeria went into the workshop with the team of QUNFENG to examine QUNFENG's automated and modernized production equipment and production mode, and started an in-depth technical exchange journey together.