塔河XMDZG2026030504-01类焊管计划中国石化塔河炼化有限责任公司镀锌焊接钢管\Φ42.4×3.5mm Q235B+Zn GB/T 3091镀锌焊接钢管\Φ42.4×3.5mm Q235B+Zn GB/T 3091普通焊接钢管\Φ48.3×3.5mm Q235B GB/T 3091普通焊接钢管\Φ33.7×3.2mm 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\Φ26.9×2.8mm Q235B+Zn GB/T 3091镀锌焊接钢管\Φ21.3×2.8mm Q235B+Zn GB/T 3091普通焊接钢管\Φ60.3×3.8mm Q235B GB/T 3091普通焊接钢管\Φ42.4×3.6mm Q235B GB/T 3091
2026-03-06