(28C) Rail, Steel No. 2 Cropped Rail En ds. Standard sec t ion, original weight 50 pounds per yard and over, 3 feet long and under. (29) Rail, St eel No. andard section tee, girder, and/or guard rails, to be free from frog and switch rails not cut apart, and contain no manganese, cast, welds, or attachments of any kind except angle bars.