a. Adopt South Korean 3G lift and Slide hardware,window sash can slide freely when lifted,frame and sash sealed by weather striping,overturn the traditional method---frame and sash sealed by weather seal and resolve completely bad seal problem. b.Adopt solid wood as interior decorative finish, manifesting top grade and natural living quality. c.Barrier free and multitudinousness bottom track.Unique design of concealed bottom track with easy clearing. d.Speciallzed sill pan guarantees high water tightness. e. Every sash can realize sliding and lift separately. f.can be make into consealed lift and sliding door. g.Three kinds of standard tracks and side frame,can be splice matching into seamless multi-tracks lift and Slide door. h.Multi-tracks lift and sliding door can be achieved by splice matching. i. New Type adhered wood and simulated divided lite can splice into abundant patterns. g.By changing sash profiles,can make into aluminum non-thermal break lift and sliding door.