tender for purchase of construction material hume pipe etc , construction material , reinforced cement concrete hume pipe np2 class 300mm dia 2.50 meter , reinforced cement concrete hume pipe np2 class 450mm dia 2.50 meter , reinforced cement concrete hume pipe np2 class 600mm dia 2.50 meter , reinforced cement concrete hume pipe np2 class color 300mm , reinforced cement concrete hume pipe np2 class color 450mm , reinforced cement concrete hume pipe np2 class color 600mm , reinforced cement concrete hume pipe np3 class 300mm dia 2.50 meter , reinforced cement concrete hume pipe np3 class 450mm dia 2.50 meter , reinforced cement concrete hume pipe np3 class 600mm dia 2.50 meter , reinforced cement concrete hume pipe np4 class 450mm dia 2.50 meter , reinforced cement concrete hume pipe np4 class 600mm dia 2.50 meter , reinforced cement concrete hume pipe np4 class 1000mm dia 2.50 meter , reinforced cement concrete hume pipe np4 class 1200mm dia 2.50 meter , half round reinforced cement concrete pipe 300mm dia 2.40mtr. length , half round reinforced cement concrete pipe 200mm dia 2.40mtr. length , reinforced cement concrete chair 3 seater ( standard size )