求各种钢材交易的计价方式,比如螺纹是按检尺计算的,其他的钢材呢
2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10在做雨水检查井时不知道要预留的支管标高如何确定求大神帮忙给个计算步骤谢谢
2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10 2025-02-05 23:56:10