The rail train and double-section bus train through the road device, also known as the windshield device, is located at the connection of the two carriages, is the connection part of the vehicle channel. It has a good rain, wind, dust, sound insulation, heat insulation and other functions, suitable for vehicles running on underground, ground and elevated lines, so that passengers can safely walk between vehicles. According to the structure, the through passage can be divided into folding shed interior decoration through passage, lapped side protection plate interior decoration through passage and integrated side protection plate interior decoration through passage.
As an important part of the passageway, Keqiang's rubber shed fabric is divided into two series: Hypalon and silicone rubber, which can meet the application needs in different environments. According to different product forms, they can be divided into two main categories: shed cloth and elbow. In addition, there are various types of rubber products such as "protective skirts" and "side guard plates" for passageways.