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KELLER was founded in 1894. At that time, the Laggenbeck mechanic Carl Keller developed the finger car, which represented the beginning of automation in the brick industry. With further groundbreaking inventions, KELLER became the global technology l
Zhejiang Zhonghong Explosion proof Electrical Co., Ltd. is located in Yueqing City, a production base for explosion-proof electrical appliances in China. It is a large enterprise specializing in the production of explosion-proof electrical appliances