City storage system manufactures a wide range of carriage system to move materials from one place to another. As part of these products the company offers high quality platform trolleys. These trolleys come with steel structure. These are provided with two fixed and two moveable castors with one handle to carry materials easily. These are available in different sizes and load capacities. These platform trolleys are of three types-open type, two side closed or four side closed. These are economically priced and meant for maximum utility.