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DCT-01-2B2-Y-40，DCT-01-2B3-Y-50油研
DCT-01-2B2-R-40,DCT-01-2B2-R-50油研
DCT-01-2B2-50,DCT-01-2B2-40油研换向阀
DCT-03-2B8-Y-40，DCT-01-2B2-Y-50油研
DCT-03-2B8-R-40,DCT-03-2B8-R-50油研
DCT-03-2B8-50,DCT-03-2B8-40油研换向阀
DCT-03-2B3-Y-40，DCT-03-2B8-Y-50油研
DCT-03-2B3-R-40,DCT-03-2B3-R-50油研
DCT-03-2B3-50,DCT-03-2B3-40油研换向阀
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