钢铁结构体（品目9406的活动房屋除外）及其部件（例如，桥梁及桥梁体段、闸门、塔楼、格构杆、屋顶、屋顶框架、门窗及其框架、门槛、百叶窗、栏杆、支柱及立柱）；上述结构体用的已加工钢铁板、杆、角材、型材、异型材、管子及类似品HS编码 7308

Structures of iron or steel and parts thereof; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in structures