≤7hPlastic Weighing Dishes/Weighing Boats/Weighing Bowls/Weighing Tray/Weighing Pans/Weighing Disc/Weighing Plate,crucible,Aluminum Weighing Dishes/Weighing Boats/Weighing Bowls/Weighing Tray/Weighing Pans/Weighing Disc/Weighing Plate,laboratory consumable,laboratory equipment