RTM C90

90 min audio cassette based on legendary SM900 formula.

• Width: 3,81mm

• Length: 131m

• Recording time: 90min max

• Clear 5-screws tabs-in cassette, with black bridge

• Base film: Polyester

• Base film thickness: 8 µm

• Coating thickness: 5 µm

• Total thickness: 13 µm

• Coercivity: 370 Oe

• Saturation retentivity: 1480 G

• Oxide: Fe2O3

• Packaging: overwrapping per unit, carton boxes per 10pcs