cheap Steel Coil Our Factory Gaoya has been in the construction area for around 20 years. It is a diversified enterprise integrating domestic and foreign building materials trade and sales, processing, warehousing, and logistics, etc. Moreover, It maintains cooperative relations with major steel mills such as Rizhao, Laiwu Steel, Anshan Iron and Steel, Benxi =website:http://www.building-mat.net/ website2:http://www.construction-mat.net/