I-danda
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Structural danda I-beam ASTM inopisa-yakakungurutswa kabhoni simbi I-beam
I-beam, inozivikanwawo sesimbi yesimbi, isimbi yakatsetseka ine I-shaped chikamu.I-beam yakakamurwa kuva inopisa-yakakungurutswa I-beam uye chiedza I-beam.Icho chikamu chesimbi chine I-shaped chikamu.
