1. Kubvisa ngura kwepamusoro pepombi yesimbi kunofanira kusvika kune sa2.5 muyero we gb8923-88, kuratidza ruvara rwechisikigo chesimbi, pasina girisi inooneka, tsvina, rust, nezvimwe zvakabatanidzwa. 2. Iyo anti-corrosion layer inofanira kuporeswa mukati memaawa makumi maviri nemana, ine yunifomu ukobvu, compactness, n...
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