Standard: GB11264-89 Size: 6kg, 9kg, 12kg, 15kg, 22kg, 30kg Material: 55Q/Q235B Length: 6-12 m In order to ensure better quality, our steel rails have to undergo many tests, including chemical composition test, tensile strength test, hardness test and the drop weight test. Our light rails are mainly used for laying temporary hauling tracks in forested areas, factories, mines, and construction areas.