As one of the world’s leading suppliers of high-quality door components, Oldtonew maintains rigorous quality standards: every door panel, door core, and complete door set we produce undergoes independent mechanical and durability testing, ensuring long-term reliability and performance throughout its service life.

 

From door blanks and cores to steel door frames, intumescent seals, and hardware, Oldtonew provides a comprehensive component system for the production of door leaves and door set assemblies—fully supported by third-party certifications.