서있는 솔기 금속 지붕 시트 컬러 강판 ppcg 장식 아연 금속 지붕 코팅 컬러 강판

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.