Two Years Operation & Comp r e h e n si v e Maintenance of Three Nos. Sewage Treatment Plants (two of 30 Kld Capacity And One of 50 Kld Capacity)

Two Years Operation & Comp r e h e n si v e Maintenance of Three Nos. Sewage Treatment Plants (two of 30 Kld Capacity And One of 50 Kld Capacity)