Asto Machine and Industrial Structure Manufacturing Company’s field of activity is focused on industrial steel structures. The wide range of its activities includes suspended bridge construction, aerial tanks, steel structure bridges, under pressure tanks, condensors for power plants, cement depot silos, cement mill, spherical silos, steel structure platform, feeder and steel structure equipment for factories and mines, stack, duct and casing construction for power plants and reservoir tanks.

The construction process in Asto Co. complies with ASTM and ASME international standards and AWS-D.I.I international welding standard, and approved by the ISO 9001 version 2000 Quality Management System, OHSAS 18001: 1999 Occupational Health and Safety Management System, ISO-3834-2: 1994 Welding Certificate, GSI Goods and Services Indentification certificate and the Grading of the Management and Planning Organization of Iran.

Asto Co. is equipped with a heavy steel construction workshop with 220,000 m2 area, including 20,000 m2 of covered and 3000 m2 of uncovered halls and also 5,000 m2 of department buildings, restaurant and covered storages.