Popular Manual 3m Projector Screen

Specifications 4:3 format projector screen

manual type with self-lock device

good choice for schools

Popular Manual 3m Projector Screen :   1.Flat surface on each for sides 2. Self-locking device for reliable and safe operation 3.Ideal projection screen for home movies, classroom 4.The upper axis can be rolled into the white square case 5. Professional designed. Easy and simple installation to the ceiling and wall 6.Convenient to pull and extend, easy to adjust the interval, suitable for different projection format(proportion)           

The Fabric Selection of the Manto Manual
	Screen Name	Optical Testing		Flame Retardant	ROHS	Specification		Physics
NO.		High-gain	Viewing Angle	Grades	standard	Thickness	Weight	Features
1	Wrap knitting-K	1.0	2α=100°	BS5867	standard	0.38±0.02mm	440±20g/sq.m	PVClayer, polyester warp fabric
2	Matte white-B	1.0	2α=110°	BS5867	standard	0.42±0.02mm	520±20g/sq.m	PVC,polyester fabric, 300Dx300D
3	Fiber glass-A	1.0	2α=110°	BS5867	standard	0.42±0.02mm	520±20g/sq.m	Glass fiber fabric,PVC layer
4	Fiber glass grey fabric-GRY	0.85	2α=100°	BS5867	standard	0.45±0.02mm	520±20g/sq.m	PVC,polyester fabric, 300Dx300D