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Z·LANG founded in 1992, began its journey in high-end custom doors and windows. In 2005, its headquarters was established in Shanghai, focusing on steel and copper systems, and quickly became a leader in industry trends.With over 20 years of experience, the company specializes in custom steel and copper doors and windows for historical buildings and luxury homes. Combining craftsmanship with design, and exploring materials, performance, and aesthetics, it has gained a unique edge in the high-end market.It later became OTTOSTUMM's exclusive partner in China, entering the global luxury doors and windows market.Today, Z·LANG plays a key role in restoring world-class architecture, continuously innovating and setting new standards in luxury doors and windows. Z·LANG are not just functional—they embody the soul of architecture and craftsmanship.
