GRP SECTIONAL WATER TANKS manufacturer who has been in the field about 30 years with good reputation. Due to its quality products and services, all major contractors/construction companies choose SEJIN without hesitation. EXCELLENT HYGIENIC PROPERTISE * Nontoxic, WRAS certified materials * Suppression of algae and microorganisms with excellent blocking of sunlight * Minimization of moss and scale by smooth surface finish OUTSTANDING DURABILITY * Optimal system by FEM (Finite Element Method) design. ABSOLUTE WATER TIGHTNESS * Foam type gasket with excellent elasticity and resilience. FREE CAPACITY DESIGN * Various shapes to meet different site conditions (ㄴ-shape, ㄷ-shape, ㅁ-shape). * Versatile capacities (1m3 ~ 5,000m3). EASY INSTALLATION & MAINTENANCE * User-friendly installation even in the restricted area by using standardized panels and reinforcement materials. HIGH INSULATION PERFORMANCE (OPTIONAL) MUTI-COMPARTMENTS (OPTIONAL)