ZTC500A552 50ton truck crane:

The 5-section 45-meter U-shaped main boom has a counterweight of 8.5 tons. It is equipped with a Weichai 9L engine and a Fa st 9-speed gearbox. It meets the standards of Class G vehicles and has strong site adaptability.

ZTC250A552 25ton truck crane, equipped with 5 sections of single-board U-shaped main boom, 41m. Maximum boom lifting weight 6.4 tons, counterweight 6.2t
Lifting wire rope diameter 17mm, power: Weichai 7-liter engine + Fa st 8-speed synchronizer gearbox.
It meets the standards of Class G vehicles and has stronger site adaptability. It is an enhanced version of ZTC201V552.