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相关型号
AISC-2220H-331K-T AISC-2220H-3R3M-T AISC-2220H-470K-T AISC-2220H-471K-T AISC-2220H-471M-T AISC-2220H-472K-T AISC-2220H-472M-T AISC-2220H-4R7M-T AISC-2220H-680K-T AISC-2220H-681K-T