Objective In order to meet the demand for traction current collection in rail transit at the speed of 120 km/h and above. the research on high speed contact rail system is conducted and a complete optimization scheme is proposed. Method Based on the analysis of the influencing factors of shoe rail current collection. the idea about optimizing the quality of the high speed current coll... https://countryscenesaddleryandpetsuppliers.shop/product-category/lunge-line/