The company possesses the most sophisticated low-relaxation strands production line and testing devices that are imported from MARIO FRIGERIO S.P.A Corporation of Italy and manufactured by SKET Corporation of Germany. All the key technological devices are controlled by computer to make sure the high-speed and steady running of production line. The company has perfected its quality assurance system and passed ISO 9001:2000 standard system, The quality and property of its products are conformed to GB/T 5224-2003,ASTMA 416-2006,BS 5896-1980 and JISG 3536-1999 standard systems and awarded with “Golden Cup Prize to Quality” for many years. The low relaxation PC strand have been well sold 30 provinces, cities and autonomous regions domestically and exported to USA, Italy, Bahrain, UAE, Brazil, Singapore, Malaysia, Korea and Egypt etc. In order to meet the demand of technological developments of reinforcing the anchorage cable for coal mine and rock tunnel, the treatment of landslide and reinforcing the deep basic pit and dam foundation, our company and Coal Scientific Research General Institute co-developed the large diameter PC strand for coal mine tunnel. Unbonded PC Strand has a good corrosion-resistance and less friction of unbonded tendons and can be easily bended into curve shape. It is suitable for making cast-in-place coucrete of long-span and wide building cover, heavy load prefabricated beam and other special structures. It has a lot of charaters such as no need of grout hole and grouting, convenient to use, material-saved, bending easily and so on. Our products were widely used in a large number of national key projects in the sectors of electricity, railway, road, bridge and nuclear plant and were sold to Europe, United States of America, Australia, New Zealand, Southeast Asia, Middle East, Africa etc.