... style engineered for school ,house ,factory 1.profile:aluminium alloy6063-T5,powder coating (or anodizing) ,,wall ... windows & doors ,curtain wall ,roller shutter,partition ,fixed shutter,handrailSuperior heat insulation & preservation performance With thermal ... After surface processing, the window and door have strong weatherability, ageing resistance,and high corrosion resistance. Variegated,Flexible ...