Coupling

• CSF-A5 type expansion joint sleeve (JB/T7934-1999)
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• CSF-A6 type expansion joint sleeve (JB/T7934-1999)
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• CSF-A7A type expansion joint sleeve (JB/T7934-1999)
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• CSF-A7B expansion joint sleeve (JB/T7934-1999)
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• CSF-A7C expansion joint sleeve (JB/T7934-1999)
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• CSF-A8 type expansion joint sleeve (JB/T7934-1999)
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• CSF-A9 type expansion joint sleeve (JB/T7934-1999)
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• CSF-A10 type expansion joint sleeve (JB/T7934-1999)
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• CSF-A11 expansion joint sleeve (JB/T7934-1999)
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• CSF-A12 expansion joint sleeve (JB/T7934-1999)
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