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Tianjin Longheng prestressed steel strand Co., Ltd. is an enterprise established in accordance with the modern enterprise system, specializing in the production of prestressed concrete products. The company is located in Jinghai Development Zone, Tianjin, covering an area of 26000 square meters, a building area of 12000 square meters, with a total investment of 280 million yuan and a registered capital of 100 million yuan. Specializing in the production of various specifications of prestressed concrete steel strand, prestressed steel wire, unbonded prestressed steel strand, etc. The annual production capacity is 120000 tons. The company introduces the production line with German Siemens PLC automatic control system with domestic excellent level, which mainly produces 1 × 7 structure and 1 × 3 structure steel strand for prestressed concrete; steel wire for prestressed concrete; various specifications of unbonded steel strand, etc. The supporting we-100kn, we-300kn, jew-600kn tensile testing machine, cwj-6 type mobile bending testing machine, sl-300 electro-hydraulic servo relaxation testing machine and other sophisticated testing equipment and perfect and professional testing means can guarantee the quality of products to meet the domestic and foreign standards such as GB / t5224-2014, astm416, bs5896, etc. At the same time, "Longheng" brand prestressed steel strand and steel wire series products have passed the quality inspection and approval of national inspection center, Ministry of railways, Ministry of metallurgy and other national institutions. The company has established a perfect enterprise management system and quality management system, and the quality management system certification of iso9000-2008 is the consistent quality system management standard of the company. Excellent production technology and testing equipment ensure the quality of products. Longheng products have been widely used in various national projects in more than 30 provinces and autonomous regions, and exported to the Americas, Europe, Africa, the Middle East, South Asia and other regions. The company is 30km away from Tianjin Binhai New Area, 80km away from Tianjin new port, 1.5km away from Jinghai exit of Jincang Expressway in the East, 2km away from Jinghai exit of Jinghu Expressway in the West and 1km away from Jinghu railway. The transportation is very convenient.

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