Below Rail Infrastructure, Environment and Sustainability, Products & Technology, Rail Supply KLP Hybrid Polymer Sleepers ensure stable gauge and reduced noise levels KLP Hybrid Polymer Sleepers offer a clever combination of high bending stiffness and low thermal expansion coefficient of steel, coupled with the dampening characteristics of polymer. This deliversRead More Staff WriterJuly 13, 2020, 9:00 amJuly 14, 2020