Dear Clinets,Good day.Shahe city FangYuan Casting Co.Ltd, specialized in manufacturing Ductile iron casting manhole covers,gratings for telecommunication-engineering,waste water engineering .Products are certificated by ISO9001:2000 already.Welcome your inquiry any time.Yours TruthfullyShahe City FangYuan Casting Co.LtdJackie Jiang,Sales DepAdd: West of Nangao village ,shiliting town,shahe city,HeBei Province,ChinaTel:0086-0319-8896248Fax: 0086-0319-8895588Mob: 0086-18831927671