Modern Zinc Alloy Double Door for Building Entrance Architectural Design

Enhancing both aesthetics and security, the hinges are concealed to prevent forced entry by prying them open.

• Complies with JG/T 125-2017 Grade 1-3 standards
• Load capacity: 40kg
• Operating cycle: 30,000 times
• Material: 304 stainless steel (≥2mm thickness)
• Bearing diameter: ≥8mm
• Special anti-theft structure

C-level certification of the Ministry of Public Security (the highest civil security).

• Anti-pull time: ≥10 minutes
• Accessories: 14mm extended steel bolts (anti-prying design)
• Housing: High-carbon steel bolts + anti-corrosion alloy
• Service life: Over 200,000 times (2× national standard)
• Rust prevention: 72-hour salt spray test certification

Military-grade cold-rolled steel with traceable supply chain.

• Yield strength: ≥340MPa
• Zinc coating: ≥70g/m²
• Door panel thickness: 1.0mm (Max value of industry grade A)
• Anti-destruction duration: ≥30 minutes (GA/T 73-2015)
• Impact resistance: 50% higher than mainstream 0.8mm products