Unit strength longevity expansion durability metal sheets 10,000 liters various sizes alloy coating 100,000 liters industrial use modular design allegianceindia 5,000,000 liters 2,500,000 liters storage capacity rectangular shape easy installation rainwater storage industrial purposes waste water storage Allegiance Enterprise industrial applications demineralized water storage The Zincalume steel coating excellent corrosion resistance The Zincalume steel construction Modular Prefab Water Storage Tanks Zinc Aluminium Liquid Storage Tanks continuous hot-dipped metallic coating process Rectangular Zinc Aluminium Water Storage Tanks Allegiance Water Management Zinc Aluminium Water Tanks