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Hebei Haihao GroupHHUSSR STATE STANDARDSIZED BARS MADE OF HIGH-QUALITYSTRUCTURAL CARBON STEELWITH A SPECIAL SURFACE FINISHGENERAL TECHNICAL SPECIFICATIONSG0ST1050-88Official EditionUSSR STATE COMMITTEE FOR PRODUCT QUALITY MANAGEMENTAND STANDARDSMoscowEmail:sales@haihaogroup.comwww.haihaopiping.com
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