news Magnetic levitation track shock absorber mat tri(dimethylaminopropyl)amine CAS 33329-35-0 Dynamic load response optimization technology Microlevator track shock absorber pad tri(dimethylaminopropyl)amine dynamic load response optimizati... 03/2021Magnetic levitation track shock absorber mat tri(dimethylaminopropyl)amine CAS 33329-35-0 Dynamic load response optimization technology