In recent years, most of the newly-built metro trains in China are aluminum alloy car bodies. Compared with the traditional steel car bodies, aluminum alloy car bodies have incomparable advantages compared with other materials - lighter weight, which means that the energy consumption of rail transit can be reduced to a greater extent, which is in line with the social advocacy of green, enviro…

Appearance inspection1. Surface inspectionLook at the glossiness of doors and windows from a far away place to see if there is obvious color difference on the surface; measure the size of doors and windows with ruler to see if there is deformation; touch the surface of doors and windows with hand closely to see whether it is smooth and scratch free.2. Inspection of sealant stripThe contact …

Doors and windows are in the house, just as the eyes are to the body. They are not only the embodiment of science and technology, the extension of art, but also the protection of the residents. Throughout this year's China Construction Expo (Guangzhou), there are a wide range of home furnishing products combined with fashion design and healthy life concept, and major door and window b…

In recent years, ultra-low energy consumption buildings are often mentioned, especially the rapid development of energy-saving buildings. Passive houses originated in Europe have developed rapidly in China. With advanced materials and unique technology, passive house has improved building energy efficiency, living quality and atmospheric environment. It has greatly reduced the energy consu…