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KS D3507 JIS G3542 ASTM A120 ASTM A135 GrA ASTM A53
GrA BS 1387 |
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KS D3562, JIS G3454, ASTM A53 GrB, ASTM A135 GrB
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KS D3566, JIS G3444 ASTM A500,
BS1775 | |
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KS D3517, JIS G3466 |
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KS F4602, ASTM A252 |
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API 5CT |
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