Reliable custom thermoforming packaging. PRENT is an US based company founded in 1967, our commitment to continuous improvement, design innovation, and process refinement has encabled Prent to become a world leader as a custom supplier of precision plastic thermoforming. 1.USA based professional thermoforming solution provider. 2.Customized. 3.Manufacturing process utilizes Real Time SPC. 4.Rigid sidewall,good sealing with Tyvek. 5.Produced in medical clean room facility. 6.Traceable.