Materials used large cast aluminum parts. The door standard: 105*55, Thickness 1.5mm. Indirect materials used to increase the solid core aluminum material can withstand the weight of 4 ton without distortion or fracture. Featuring new 50 large pulley grooves and solid core tire big wheels for lifelong quality security.

Optimum height of 1.88 m with solid cast aluminum door skates featuring luminous reflective effects. It is a preferred choice for major enterprises, institutions, and office spaces.

The bottom of the door body is widened to more than 1 meter. Compact structure and uniform force distribution allow it to bear up to 4 tons. High-pressure die-cast aluminum ensures the body is solid, stable, and resistant to impact, frost, and corrosion.