Steel Trolley Trolleys also have a different history, over the centuries human society used trolleys in different ways to carry heavy items of their needs from one place to another. The change of needs and times also brought about drastic changes in the direction and condition of trolleys, which has become an important need of every human being today. While trolleys are being used for their convenience today, they have also become necessary in some places. If we talk about trolley, then platform trolley, tea trolley, garbage trolley, kitchen trolley for serving food in hospitals or commercial kitchens, medicine trolley in hospitallon, surgical trolley used in operation theater etc.