Lateritic soil sources taken from wells and coursework certification lateritic Pong, which is located in Tambon phanom Thuan district of Kanchanaburi province, rattan table best soil reclamation who is used as a filling material (lateritic soil) taken from wells in the sand, which is located at Tambon thung maruay ball birds kamphaeng Saen district, Nakhon Pathom.
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