... -friendly material 3.LOGO and website are welcome. 1.PS seed tray Materialplastic (PVC/PS)Process TypeblisterColorblackTray sizeL53cm x W28cm x H4 ... --8mmSpecification21,32,50,72,105,128,200,288 cells.(cell trays)no cell (Flat Tray)Sample time3-5days(plaster mould); 7-10days ... .High Impact Resistance , Flame Retardant.3.products details PS plastic seed tray for greenhouse