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ASTM A312 TP304H 304H S30409 DN10 Pipa Stainless Steel Seamless2021-07-23 09:43:19 |
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JIS Baja Bulat Digulung Panas SAE4120 20CrMo 25CrMo4 DIN 1.7218 DIN EN 10083-32023-12-27 17:00:55 |