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4.5{25}2x10122x1014 253.20.001---50~+200约5090以上内径mm壁厚mm包装标准　　　　　　　　　　　公差　2.5KV 4KV　6KV　7KVM/R0.5±0.2 0.252001.0±0.2 0.501.001.502.002001.5±0.30.501.001.502.002002.0±0.30.501.001.502.002002.5±0.30.501.001.502.002003.0±0.30.501.001.502.001003.5±0.30.501.001.502.001004.0±0.30.501.001.502.001004.5±0.30.501.001.502.001005.0±0.30.501.001.502.001006.0±0.50.501.001.502.001007.0±0.50.501.001.502.001008.0±0.50.501.001.502.001009.0±0.50.501.001.502.0010010.0±0.50.5

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