Feature: 1. Taking new aluminium profile with polyester foam, which has a good warm protection. 2. Zinc-coated steel frame sturucture. The bottom rubber strip keeps dust away from the house. Made of high grade pre-painted steel panel of thickness ranging from 0.40mm-0.48mm. 3. For the beautiful apparence, very light weight, little noise, it is welcomed by many small stores. 4. All doors are available in a choice of low-maintenance, attractive colours. Every size of door opening can be accommodated - from single doors to oversize double doors. 5. Any color is available. It can enchance your home with a seamless appearance while they can protect the property of homeowners and businesses in all kinds of weather.