aluminum sliding window 1)sound proof, airproof, water proof, heat-preservation 2)smooth sliding 3)strict QC,OEM... Aluminum casement window/Swimh window/hinges window1.Material:aluminum frame:aluminum alloy 6060,6061,6063,T4/T5/T6 Anodizing,Electrophoresis ,powder coating,PVDF,in any color.2.Glass option:A.single glass:5/6mm B.double glazing:5+6/9/12/27A+5mm C.laminated glass:5+0.38/0.76+1.52PVB ...