Tender For The Purchase Of 1 Item Of Soil Filled Material With A Cbr Greater Than Or Equal To 4% For The Digging Of A Flood Drainage Canal. With Accompanying Buildings, Km. 20+100 - Km. 22+500, Sanam Chai Subdistrict, Bang Sai District, Phra Nakhon Si Ayutthaya Province, P.O.10 By Electronic Bidding.