Shijiazhuang Spring Machinery Co., Ltd. After decades of development, now has a staff of 300 people, including professional development, production team, the company introduced international advanced laboratory and production equipment, scientific research, production, sales and after-sales as one of professional machinery manufacturers. Headquartered in Shijiazhuang City, Hebei Province. Factories and supporting manufacturers are located in Shijiazhuang City, Hebei Province. Xingtai City, Hebei Province. Handan City, Hebei Province and Beijing.