... variety of high performance buliding curtain wall,windows,doors,aluminum products,products mainly including:energy-saving curtain wall,point- ... .The airproof performance arrived 350Pa. *With the simple&rational aluminum profile and structure,luxurious exterior,in good taste&looking. ... sash folding etc. which are convenient to slide. *Profiles chamber adopts the DPEM trinary seal glue,not easy to aging ...