1,Material:alu,with powder coating 2,color: usually white,match with color swatch 3,operate:remote/manual 4,width 1m -7m Hu Zhou Heng Wei Aluminium products co.,ltd produce alu material since year 1998.with 14 years' development, now mainly produce alu garage door ,rollershutter ,awnings and screens.Hengwei now have 10 pc of extrusion mechine, 2lines for powdercoating, one mechine import from ...