Yuhong Holding Group Co., LTD
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ASTM A234 WP9 CL1 CL3 Tubo di saldatura a nastri in acciaio al carbonio2024-02-01 17:08:54 |
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ASTM A403 WP316L-S Stainless Steel Cap Butt Weld Fitting ANSI B16.92024-06-16 23:45:14 |