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A420 WP L3 L6 igbonwo lori ikole robost ati resistance
ASTM A420 ni wiwa Elobobo, tee, oníye, fila, ati bẹbẹ lọ ni ibamu si ASME B16.11, ASMS BMST BMS-95, awọn oriṣi paiti paisi.
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Akoonu
A420 hanl6 ni idiyele lakoko ṣiṣe. Ilana naa le jẹ alurinmorin tabi adẹtẹ, yiyi, iwọn lilo Eto. Wọn le jẹ boya seless tabi welded. Iwọnyi pẹlu ohun ija kemikali kemikali WPL6, agbara-ara, okun imura, sisanra ogiri, ati Elongationation.
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