ASTM A250/A250M-2005(2009)
ASTM A250/A250M-2005(2009)中文名:锅炉和过热器用电阻焊铁素体合金钢管规格
英文名:Standard Specification for Electric-Resistance-Welded Ferritic Alloy-Steel Boiler and Superheater Tubes
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