... follow, but the chassis will use the above picture 1 and 2, for the picture 3 and 4 chassis ... big, not suit with your requirements of 3ton,You can select to equip fold style crane, see the follow ... the fold arm crane on the truck, 4: You can select the follow chassis:l Dongfeng chassis,l Engine: Chai ... 3m long and 2.3m wide,l The rear supporting can extend 1.5m, and the max. supporting and lift weight ...