Umuyoboro wa SSAW- spiral seam weld wicyuma Intangiriro Intangiriro: Umuyoboro wa SSAW numuyoboro wicyuma usudira wicyuma, umuyoboro wa SSAW ufite ibyiza byigiciro gito cyumusaruro muke, umusaruro mwinshi, urwego runini rushyirwa mubikorwa, imbaraga nyinshi no kurengera ibidukikije, bityo ...
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