Shanghai GD Industry Co., Ltd is a leading manufacturer and supplier of Union Door Locks in China. These locks are designed and built to provide maximum security and reliability to any commercial or residential property. Our door locks are made from high-quality materials, such as stainless steel and other durable metals, ensuring long-lasting performance and protection. Our range of Union Door Locks includes a wide variety of styles and finishes to suit different requirements and preferences. From deadbolts to mortise locks, from keyless entry to padlocks, we have a product to meet every need. Our locks are not only easy to install and operate, but they also come with a warranty that guarantees their quality and durability. Whether you're a builder, architect, or property owner, you can trust us to provide you with a product that meets your needs and exceeds your expectations. Shanghai GD Industry Co., Ltd is a reliable and trustworthy manufacturer and supplier of Union Door Locks in China. Contact us today to learn more about our products and services.