【求助】麻烦各位翻译一下

结构钢截面
结构钢型材

金属制品业钢型材

Steel sections (钢型材) are generally in I, C, Z shape. If the dimension and / or shape of the required section is uncommon, the section will be fabricated with steel plates cut to required size. The fabrication is generally by means of welding.

fabricated steel sections 意为“组合钢型材” (I am not sure the Chinese term)

感觉这个解释更合理