Impregnated Wooden Sleeper, Type 1 Impregnation According To Gost; Reinforced Concrete Sleeper Ш-1-1 For Kb Fastening. Impregnated Wooden Sleeper, Type 1 Impregnation According To Gost; Reinforced Concrete Sleeper Ш-1-1 For Kb Fastening, Description According To Appendix No. 1 To The Advertisement