Paipu Hoʻohui ʻole
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Paipu Hoʻohui ʻole ʻia, HDG(hoʻopaʻa wela) paipu hale SMLS
Pili i ka hale maʻamau, ʻano mechanical ASTM A53, ASTM A106, ASTM A500-98, ASTM A501-98, ASTM A519-98, JIS G3441-1994, JIS G3444-1994, BS EN 10210-1
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