Types : Cast Iron, Ductile Irons. Brands : NECO, KFAI We are the authorized dealer for the market leader in India in the field of cast iron pipes/ci manhole covers for neco. Neco pioneered the centrifugally cast iron pipes (is: 3989) in India using the German built duker machine. Today this product is approved by most governments, semi-government departments, pubic sector undertakings and private bodies across India. They are widely used and recommended by leading builders, architects, consultants, contractors and government bodies.