Due to the built-in axle box suspension. the EMU bogie with an inner axle box causes an obvious decrease in the anti-roll stiffness of the carbody and accordingly affects the running performance. The inner axle box bogie is usually accompanied with the measures of installing anti-rolling torsion bars and increasing the vertical stiffness of primary suspension. in order to improve the ... https://darthomes.shop/product-category/decorative-trays/