internal blinds /Venetians

internal blinds /Venetians Features: a.Excellent noise insulation performance,energy conservation and environmental protection. b.Excellent fir prevention,water proof,dustproof,and lampblack,the performance of the frost prevention frozen. c.Safety,durability,economical and practical,used more often new. Specification windows with internal mini blinds A.control system: a.electrical remote control system:controlled switches on the wall,wireless remote b.Magnetic control system