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20 × 20 40 × 40 1 × 1 inisi Galvanized Square Tube Mo fausaga uamea
Galvanize Square Tubing, igoa foi Gi Square Tube, Galvanized Square Pipe, Galvanized Square Hollow Vaega, Square ma rectangular tube.E lua fa'avasegaga -"fa'amea fa'amea fa'afafa'amea vevela" ma le "fa'amea fa'amea fa'ameamea muamua".