Shandong Aiguo Forging Co.,Ltd(Used name Zhangqiu Aiguo Forging Co.,Ltd) established on 1992,start to export flanges since 2011.Aiguo is focused flange manufacture for all standard and non-standard flanges in carbon steel.With 260 workers,30000 workshop,1500 tons monthly output,28 years production experience, Aiguo guaranteed delivery time,keep good quality and competitive prices for global valued customers.