Taixing Yangzi Pharmaceutical Chemical Co., Ltd

Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for

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