Thermal Break Hidden Frame Curtain Wall Anti UV Environmental Friendly

The curtain wall frame system adopts an internally expanded stepped rivet structure, enabling a laminated and efficient frame assembly. It offers excellent wind resistance and fire insulation performance. Additionally, through the ingenious design of connectors and the internally expanded stepped rivet structure, the system achieves hole-free and damage-free installation, significantly reducing construction difficulty while allowing for thermal break insulation and a hidden frame design.

Profile specification:

60mm*220mm,60mm*180mm,60mm*150mm,60mm*120mm,60mm*80mm,60mm*50mm

Profile properties:

Fire integrity: 1h 1.5h 3h

Fire resistance: 1h 1.5h 3h

Profile thickness: 3.0mm

Zinc content of profile: 200-240g/㎡

Section accuracy: 0.3-0.5mm

Visible external R Angle: R≤0.3mm

Tensile strength: 18.3KN

Material yield strength: 280MPa

Hunan Province Goldwell Profiles Co., Ltd. was founded in July 2008 with a total investment of 78 million USD. Our production base is located in Xiangyin Industrial Park, Yueyang City, covering over 60,000 square meters, with an annual production capacity of more than 50,000 tons.

We are a leading national high-tech enterprise in China, specialising in the R&D, design, and manufacturing of precision steel profiles for doors, windows, and curtain wall systems. Our premium brand, GNT, represents our commitment to high-end quality and innovation.

Since 2010, we have focused on developing advanced technologies for complex precision forming in the steel industry. After seven years of dedicated work, we successfully mastered key technologies across four critical systems: equipment, moulds, applications, and crystal control, becoming the first company in China to master this core technology.

Today, our main products include:

• Normal steel profile curtain wall, windows & doors system.

• Fire-rated steel profile curtain wall, windows & doors system.

• Fine steel curtain wall systems.

We have achieved over 1,400 national patents and received more than 20 major awards at provincial and ministerial levels. Our honours include being recognised as a National Intellectual Property Demonstration Enterprise, one of the Top 1,000 Innovative Enterprises in China, and a Pilot Enterprise for Intellectual Property Application by the Ministry of Industry and Information Technology.

We have also established a provincial-level technology centre and an industrial design centre, leading multiple key R&D projects under the "Strong Manufacturing Province" program.

At GNT, we are committed to delivering cutting-edge steel solutions for a safer, stronger, and more sustainable future.