CNS 12742-1997 Butterfly valves for water works (Long body type)《水道用蝶型阀（长体型）》.pdf

相关资源

CNS 12743-1995 Butterfly Valves for Water Works (Wafer Type)《水道用蝶型阀（薄体型）》.pdf

CNS 12744-1998 Wafer-Type Rubber-Seated Butterfly Valves《一般用蝶型阀》.pdf

CNS 12741-1995 Butterfly Valves for Water Works (Short Body Type)《水道用蝶型阀（短体型）》.pdf

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