Tonglu three-Dragon hardware tool factory is a comprehensive enterprise integrating production of padlock, security lock, hardware and tools. The company has strong strength and advanced technical equipment. Strict quality management system makes our products more competitive and superior. Now our products sell well in more than 20 countries and regions at home and abroad. With the increasingly fierce market competition, we constantly improve the quality and service level of our products. We sincerely welcome new and old customers to visit, inspect and negotiate business. The company is willing to develop together with you.