Jinan kingdear Machinery Co.,Ltd.is specialized in researching &developing,manufacturing and selling the equipment of aluminium alloy doors,windowns&curtain walls;we have a deep research on processing technology and its fitting equipments of high quality of capacity insulation cold bridge aluminium alloy doors windows&curtain walls equipment,Base on which we produced aluminium alloy precise mitre saws,isochronous corner-make machine ,High-precision end-milling machine and corner cutting saws could better represent the advanced technics and producing technology of modern thermal break aluminium doors & windows,A lot of engineers in aluminium doors&windows industry keep providing new products ,boosting China aluminium doors & windows industry.