Pvc Manhole Covers Prices rates Suppliers in Karachi Pakistan. Fibre Concept AVT Manhole Covers 12 inch, 18″ and 24 inches square with frame and key. Karachi 0321-2248975 | Islamabad 0322-3540656 PVC Manhole Covers: Durable and Cost-Effective Solutions PVC manhole covers have become increasingly popular in construction and infrastructure projects due to their durability, lightweight design, […]