Jiss Hardware (Beijing) Co., Ltd., founded in 1965, is an integrated supplier of aluminum alloy doors, windows and curtain wall hardware accessories products and technical services, and a well-known manufacturer in the field of manual and automatic locking products for doors and windows

Gies' goal is to operate according to professional standards, providing the concept, construction and market for manual and automatic opening and closing systems for doors and windows with quality, innovation, and design.

After more than 40 years, Giss has developed from a small processing enterprise of aluminum alloy door and window hardware accessories to an industry-leading international group company with more than 100 patents, more than 1,000 direct employees, more than 8,000 products and annual sales of more than 100 million euros, and is still growing steadily.

In the 90s of the 20th century, the Group reached an extraordinary level of acquisition, strategy and market expansion, and in 2000 GSG International was founded to produce all the branded products for the Group.

GSG has subsidiaries in many major countries around the world, such as Italy, Spain, Portugal, Turkey, Greece, Russia, France, North America, Brazil, China, Argentina, Dubai and India, and has a large network of distributors.