Tianjin Zhongde Industry and Trade Co., Ltd has rich experience in the production steel reinforcement and steel vice frame for plastic window and door, special shape steel tube, and special profile steel in the past 20 years.
Our professional equipment could make sure the good quality. Our company based on the industrial frontier, and actively promote scientific and technological innovation, leading technology company, on marketing, production center, management for the protection of personnel to support the operation of ideas, and constantly enhance the core competitiveness of enterprises, providing customers with high quality , inexpensive products, and strive to create the domestic first-class steel liner supplier.