Tender For The Purchase Of 16 Items Of Quality Reinforced Concrete Round Steel Bars, Class Sr - 24 (Tis 20-2016), And Other Items, Embankment, Head Of Work, And Accompanying Building With Other Components. Lam Saphung Reservoir Project Due To The Royal Initiative Chaiyaphum Province (Expenses For Preliminary Work Preparation) (Skk.6 Khon Kaen) By Electronic Bidding Method