Shenzhen Tengda Security Technology R & D Co., Ltd. (referred to as "Tengda Security Technology") is a high-tech enterprise integrating R & D, production, sales and service. The company has many years of industry experience, and is dedicated to the design and development of ladders and metal scaffolding systems. The products are not only included in the "Shenzhen Construction Engineering Safety and Civilization Construction Standards", the quality is also a designated brand in Hong Kong, European and American certification, in line with national standards . DR.SAFETY Tengda industry benchmark, leading enterprise in the ladder industry.