publicación1 xing tuberia.pdf · standards gb/t699 gb/3077, gb/t18254 gb/t5216y astm astm a295 jis...
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- Publicación1 xing tuberia.pdf · Standards GB/T699 GB/3077, GB/T18254 GB/T5216y ASTM ASTM A295 JIS G4106s JIS G480Ss DIN EN10083-1. DIN EN10083-2 IS0683-17. ASTM A322 etc. ASTM A576
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