... type:louver glass thickness :4mm,5mm,6mm size:4*24/30/36,6*24/30/36 packing;carton moq:one 20ft container ... enjoy excellent lighting even when the louvres are closed.4. The speed, direction, and scope of ventilation ... 4mm, 5mm, 5.5mm and 6mmSizes: 4"x24"/30"/32"/36" or 6"x24"/30"/32"/36", of course we ... CasesDelivery Time10days after confirmationMOQOne 20ft container 5mm 6*24/30/36 obscure louver glass