焊管框架协议中国石化长城能源化工（宁夏）有限公司镀锌焊接钢管\Φ114.3×4mm Q235B+Zn GB/T 3091镀锌焊接钢管\Φ33.7×3.2mm Q235B+Zn GB/T 3091普通焊接钢管\Φ26.9×2.8mm Q235B GB/T 3091普通焊接钢管\Φ33.7×3.2mm Q235B GB/T 3091普通焊接钢管\Φ42.4×3.5mm Q235B GB/T 3091普通焊接钢管\Φ48.3×3.5mm Q235B GB/T 3091普通焊接钢管\Φ60.3×3.8mm Q235B GB/T 3091镀锌焊接钢管\Φ33.7×3.2mm Q235B+Zn GB/T 3091镀锌焊接钢管\Φ42.4×3.5mm Q235B+Zn GB/T 3091镀锌焊接钢管\Φ48.3×3.5mm Q235B+Zn GB/T 3091镀锌焊接钢管\Φ60.3×3.8mm Q235B+Zn GB/T 3091镀锌焊接钢管\Φ76.1×4mm Q235B+Zn GB/T 3091镀锌焊接钢管\Φ88.9×4mm Q235B+Zn GB/T 3091镀锌焊接钢管\Φ26.9×2.8mm Q235B+Zn GB/T 3091镀锌焊接钢管\Φ21.3×2.8mm Q235B+Zn GB/T 3091镀锌焊接钢管\Φ33.7×3.5mm Q235B+Zn GB/T 3091镀锌焊接钢管\Φ33.7×3.3mm Q235B+Zn GB/T 3091
宁夏/银川-2025-12-02 00:00:00
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