Cast iron tramroad can be an assembly, testing, welding and inspection equipment, cast a large beam platform. To track the use of flexible and convenient, the anchor of the device to adjust the position, but also conducive to the operation of equipment. Encountered a huge volume of machinery and equipment can track a few or more to piece together, as the host platform. Ground rail is an important and indispensable industry equipment. Advantages: small and convenient to use readily assembled into large flexible platform, saving material cost, the space is small, is often used in the construction of common facilities. Material: the use of high strength cast iron HT200-300 manufacturing, face hardness is HB170-240, after two manual processing (annealing 600 degrees -700 degrees of artificial and natural aged 2-3 years) so that the accuracy of product stability, good wear resistance. Specification: The specification can be produced according to the demand side or both sides agreed on drawing production and processing