... natural busHengtong CNG bus cover mini bus, 9 to 18 city bus . and luxury CNG coah,School bus . strict product ... performanceSpecifications1. Rear cng engine 2. 9 meter large bus 3. Excellent Road Performance, fuel efficient, safety ... )2550Engine Type in line, 6cylinder,four stroke,inter-cooling,,CNGElectronically controlled CNG engineOver height(mm)3350Wheelbase ... 14000 26+1 seat Natural gas city bus