Mutu wa polojekiti: hydraulic system ku Canada Chiyambi cha Project:Hydraulic engineering ndikugwiritsa ntchito mfundo zamakanika zamadzimadzi pamavuto okhudzana ndi kusonkhanitsa, kusunga, kuwongolera, kuyendetsa, kuwongolera, kuyeza, ndi kugwiritsa ntchito madzi.Dzina lazogulitsa: Mafotokozedwe a SMLS: ASTM A106 G...
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