· Wanlong: Crossbeam: 100% casting iron with heavy weight.
· Hesheng: Crossbeam: Steel base filled with concrete. Easy to bend at high temperature or too cold weather.
· Wanlong: Crossbeam: 100% casting iron with heavy weight.
· Hesheng: Crossbeam: Steel base filled with concrete. Easy to bend at high temperature or too cold weather.