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耐熱鉻鉬合金鋼；克羅洛伊低合金耐熱鋼；鉻基合金...

Technical specification for welding of croloy piping in petrochemical engineering.石油化工工程鉻鉬耐熱鋼管焊接技術(shù)規(guī)程....

croloy的音標(biāo)：...