1. Good heat preservation
K value-heat transfer coefficient
Ordinary aluminum alloy K=207 W/(m2k)
Broken bridge aluminum alloy K=2~4 W/(m2k)
2. Good sound insulation
Elaborate structure design and tight seams .
3. Good air tightness
4. Good water tightness
5. Wind pressure resistance
The decorative surfaces on both sides are made of aluminum alloy, which has good wind pressure resistance, and the finished doors and windows can reach level 7
6. Fire resistance
Aluminum alloy is a metal material and does not burn. The nylon 66 in the middle is added with flame retardant and does not burn. Is a recognized flame retardant material
7. Anti-theft
Broken bridge aluminum alloy doors and windows, equipped with excellent hardware, make thieves helpless.

Zhejiang SUNKEY Industrial Co., Ltd. Is located in Yuyao,Ningbo city of eastern Zhejiang.As a professional Aluminium Window Profiles Manufacturers and aluminium window frame Factory, the introduction of today's advanced production, quality control equipment, and built a set of casting, extrusion, anodizing, electrophoresis, powder coating, wooden in one of the large-scale professional aluminum manufacturing plant. We have our own foundry workshop, so we can offer good price and wholesale aluminium window profiles . Annual production capacity of 45000 tons, the products include construction material, industrial material two series, nearly a thousand kinds of specifications, and specially designed for the customer to customize a variety of specific-type construction or industrial materials.