... (L×W×H)Wall panelThickness: 50mm, width: 1150mm, tongue and groove interlock structure, with Polystyrene (EPS) insulation inside, color: ... high, quadrate steel support,2 rows of grilles made by flat bar and twisted steel, then painted. 3 rows of indented ... 5M2Lighting systemCeiling lights: 8units x 4 pcs =32pcs x 36W. Side lights: optional, with electronic ballast.Control systemSpraying, heat spraying, ...