Panel de techo de costura de pie de aluminio de muestra gratis Panel de techo de metal de costura de pie con cierre a presión

In 2021, the metal roof system project of the reconstruction and expansion of the east annex building and the parking lot supporting housing project of Xi'an Station, with a total cost of 1.167 million US dollars, involves: drawing deepening and metal roof system production, transportation, construction, etc.