... type 4 cylinders in line, water cooled,4storke,ignition CNG engine) SpecificationModelNDY6740 CNG busDimension(L x W x H)(mm)7400×2220 ... 90Max grade ability(%)≥20%Brake distance(m)≤10Engine modelEQ6100-1(CNG)Emission standardEuro IIEngine type4 cylinders in line, water cooled, ... 4storke,ignition CNG engine)http://www.ndy-auto.com/products/product-cng-bus--ndy-6740-ndy-6740.html ...