... copiers, video lights, embroidery cabinets, ladders, junction box, aluminum foil cores pipes, radiators, chassis, cabinets, production line ... 1.GB/T6892-2000 "industrial aluminum and aluminum alloy extruded profiles"2.GB5237.1-2004 "aluminum alloy extruded profiles for ... 5.GB/T3190-1996 "Aluminum and Aluminum chemical composition"6.GB/T14846-93 "aluminum and aluminum alloy extrusion profiles size ...