We manufacture manhole cover: ductile iron and grey iron.

1) Ductile iron: QT400/18, QT450/10, QT500/7, QT600/3, QT700/2

grey iron: HT150, HT200, HT250, HT300, HT350

2) Loading weight of pressure: A15, B125, C250, D400, E600, F900

3) Certification of qulity: ISO9001: 2000

4) Main market: Middle East, Africa, Europe, South Korea