发布时间:2025-02-06 21:54:29
H是热轧H型钢。N是窄翼缘 W是宽翼缘,HW250×250×9×14:截面高度250,翼缘宽度250,腹板厚度9,翼缘板厚度14
金骏眉等级和价格表2023年特级金骏眉价格表最低2000元一斤
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