We are manufacturer of slim Hot/Cold rolled Steel Windows & Doors / Replacement Aluminium Windows & Doors.Steel door, french steel door,steel windows and doors, industry steel window. doors.Energy efficient! Minimalist! Classical elegent !Following Europe steel windows in mid 19th century. Materials import from Switzerland!Mainly bespoke production,200 more workers in factory,the only supplier for this industry in Shanghai,the biggest in China.Our artistic windows and doors are using directly to historic buildings restoration,classical antique villas and modern minimalist buildings.Supplying for distributors,designers and architects...to build their wonderful projects.Web: www.appletree.com.cnOnly Focus on high end historic restoration and retro style villas projects.In domestic, our artistic windows and doors are using directly to restoration French Concession buildings in Shanghai at old ages.For export, we are supplying for doors & windows distributors and designers and architects...Middle ages style customized windowsMiddle ages style customized hardwareMeet the requirements of the building about the sounds insulationReach the European energy saving levelsSatisfying the strict requirement of the architectural heritage conservation departmentAccording to the requirements of building about the style and functionWe can finish various opening way for giving the building perfect match by choosing different materials.European style ,Chinese traditional style,modern style .retro style , absolutely different style ,excellent function and performance.Precious wood , international top customized hardware.