Bor tanah, auger, penetrometer, munsel soil, sieve, analisa saringan, hammer test, concrete compression test machine, sand cone, permeability, alat uji betron, alat uji concere, jalan, asphalt dll, e-mail : tohodosby@ yahoo.com, hargapalingmurah@ yahoo.co[24 Jan. 2012, 22:07:50]