Corrugated Pipe Culvert, ndi mtundu wa uinjiniya womwe umagwiritsidwa ntchito ngati zida zopangira chitoliro, chitsulo cha kaboni, chitsulo chosapanga dzimbiri, malata, aluminiyamu, ndi zina zambiri. Itha kugwiritsidwa ntchito mu petrochemical, zida, zakuthambo, chemic ...
Werengani zambiri