청하이에서 321형 베일리 다리 (24m 길이, 4m 너비) 의 생산 및 건립

다른 비디오
September 11, 2025
Video Description:
Discover the modular portable steel bridges for sale, featuring Q345B main steel truss construction. Ideal for rapid deployment, these bridges offer high load-bearing capacity, durability, and corrosion resistance. Perfect for emergency and temporary bridge needs.
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