Steel doors and aluminum windows and doors wind pressure strength and watertight performance comparison: steel windows due to low material strength and rigidity, although processed lined steel reinforced, but about two grade aluminum windows low wind pressure and its performance than watertight. And pvc plastic doors and windows prices, due to steel not plastic-steel windows lining the lumen of the corner in their profiles coupled into a complete framework, plastic welding corner strength sash, fan corners and T-node is relatively low. Steel doors and aluminum windows and doors close performance PK: steel windows due to box fan components are welded, so it should be less than airtight aluminum bolted steel doors and windows slightly better price and processing, but the higher dimensional precision aluminum window profiles steel doors and price analysis tables, boxes, fan cooperate more closely, so both still at a grade level. Shijiazhuang gorgeous windows and doors to help you analyze the deformation of steel doors and prevention measures are: (1) PVC window profiles should be used in multi-chamber type, thickness not less than 2. 2mm. Lining plate thickness of not less than 1.2mm. (2) steel window section: casement windows for multi-storey building is not less than 50 series; senior casement not less than 60 series; sash windows do not kid 80 series; sealed plastic window balcony of not less than 85 series. Ramada windows | pvc plastic doors and windows prices | Xingtai steel doors and windows prices offered by Ramada. Search for "Shijiazhuang sun room, bridge aluminum doors and windows, shower room, glass partition" reliable suppliers, network operators choose to have a full alliance Certified: Shijiazhuang Sino-American Door (www.sjzygf.com), trustworthiness and reliability, now "Commercial Union Service" page click on the live chat with us now!