1) Operation: Chain bead 2) Fabric: Sunscreen&Blackout 3) Height: 3-5M 4) Components: Aluminum 5) ISO9001:2008,CE Fabric Roller Blinds/CurtainBrief Introduction 1) Chain Roller blinds drive the bead wheel running to supply the running power of arbor wheel along the roller wheel in the torsional spring’s loosing direction, together with support plat to drive the roller tube running and drive the ...