... kg/m3 5, End side half groove: Edge of display panel has a ½ groove at the top and bottom allowing the ... , Groove styles : ellipse , rectangle , trapezoid or as requested 7, Insert: aluminum bar, PVC bar 8, Groove between : 65mm, 90mm,140mm,190mm ... , hard ware chain store, exclusive agent, market place, gallery etc high quality slot MDF panel