Tebụl ndị a na-edepụta ụdị ihe owuwu nchara nke a na-ejikarị, gụnyere ọwa ígwè, I-beam, nchara ígwè, H-beam, wdg H-beam ọkpụrụkpụ nso 5-40mm, obosara nso 100-500mm, elu ike, ìhè arọ, ezi ntachi obi. I-beam ọkpụrụkpụ nso 5-35mm, obosara nso 50-400m...
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