82 steel window series
http://www.chinamoser.com/products_details.aspx?id=2256-
Product Category
Windows & Doors System
Wall thickness of the increase in the size of 15-20% of the welding angle, 10-12% load resistance to bending and anti-twisting strength, 15-20% of the screw in the profile of the connection pull force; traditional SOFTLINE design elegant selection Type with rounded edge design, open the field of vision; standard center distance from the size of most of the hardware installation.