... 5.Most competitive price in China Description of js 500 concrete mixerJS500 is twin shaft compulsory concrete mixer ... bridge, airports, tunnels and other projects.Data of js 500 concrete mixer Main technical parameters of JS500Rated discharging ... W*H)Working state4480x3030x5280mmWeight of the whole machine4200kgAdvantages of js 500 concrete mixer1.Large feeding and discharging capacity2.Convenient ...