亚欧免费伊人电影|一二区免费看黄色大片|亚洲最大的成人a片|亚洲精品AV无码|亚洲第一性爱日韩美一级a做|亚洲AV无码网站|亚洲成人影音先锋|丁香婷婷性爱伊人网狼人|国产色吧国产色吧|a级黄色电影在线观看

Cn

The role of rail sleeper molds
Source:Qufu Juli Release Date:2020-9-24
Read:81

Sleeper molds are the basic materials used for railway line laying and are essential materials for railway superstructure. Sleeper molds are precast cement and concrete cover plates used in the construction of railways.

Sleeper molds are the basic materials used for railway line laying and are essential materials for railway superstructure. Sleeper molds are precast cement and concrete cover plates used in the construction of railways.

The role of rail sleeper molds


Fixed railway track gauge, carrying the weight load of steel rails and passing vehicles, so as to


Sleeper mold


The rail pressure load is evenly dispersed and transmitted to the roadbed, maintaining the stability and smoothness of the line.


軌枕模具的作用