1. Subvert the traditional building mode, change the traditional filling mode, and combine the mixing and pumping functions
2. Make concrete higher, farther and safer transportation, reduce labor intensity and save manpower
3. Humanized machine design, good maintainability, safe and convenient operation and maintenance
4. Continue to use "s" pipe valve, with advanced system, good sealing, simple structure and reliable performance
5. Large diameter piston cylinder with special buffer device has good buffer effect and powerful swing