Api5ct epo casing jẹ akọkọ ti a lo lati gbe epo, gaasi adayeba, gaasi, omi ati awọn olomi miiran ati awọn gaasi, O le pin si paipu irin alailẹgbẹ ati paipu irin welded. welded, irin paipu o kun ntokasi si gigun welded irin pipe
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