(1)Employ top end equipments and lines imported from Germany,Italy,Swiss land and ects. for the whole process from extruding to assembly,making this series of products the only one in this field has won the tities:'famous brand in Shanghai','energy saving product of Shanghai','outstanding buding material of Shanghai'. (2)Swing window,sliding window,inward,swing and tilt window,winding window,winding louver,top hung and outward swing window,concealed flyscreen and more kinds are optional. (3)powder coating finishing, thermal transfer printing, roll isolating bridges are optional wooden case