| G: cloth |
J:Light weight Y:Middle weight X:Heavy weight
F:Flexible |
A: Brown aluminum oxide WA: White aluminum oxide C: Black silicon carbide GL: Glass G: Garnet Z: Zirconia aluminum oxide
|
1.Glue over glue 2.Resin over glue 3.Resin over resin 4.Waterproof 5.zinc-stearate |
1.Open coated 2.Close coated
|