Zhongshan Langnuo Hardware Manufacturer Co., Ltd., as one of the largest door lock manufacturers in China, is located at the internationally famous hardware industry center-Xiaolan town, Zhongshan City, Guangdong Province. Our products include various tubular and cylindrical knob sets and lever sets, deadbolts, mortise door locks, zinc alloy door handles as well as all kinds of door lock accessories. All of our products have met ANSI Grade 3 standard.We have our own stamping workshop, die casting workshop and cylinder workshop. Our company exerts great effort on good management and has been certified by ISO 9001 quality management system. We have a strong quality control team and our own inspection center for testing product endurance, intensity and durability, which ensures high quality standard production. With good quality and great customer service, our products are exported to America, Europe, the Middle East, as well as Asia. Our relentless pursuit for mutual benefit has paved a smooth path for both our customers and us toward sustainable and long lasting business growth.