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平衡阀FD16FA,FD16PA,FD25FA系列详细内容：
FD系列平衡阀型号如:
FD12KA10/20,FD32KA10/20,FD12KA10/30,FD32KA10/30,FD12KA10/40,
FD32KA10/40,FD12KB10/20,FD32KB10/20,FD12KB10/30,FD32KB10/30,
FD12KB10/40,FD32KB10/40,FD12PA10/20,FD32PA10/20,FD12PA10/30,
FD32PA10/30,FD12PA10/40,FD32PA10/40,FD12PB10/20,FD25FA10/20,
FD12PB10/30,FD32PB10/30,FD32PB10/20,FD25FA10/30,FD25FA10/40,
FD25FB10/20,FD25FB10/30,FD25FB10/40 FD25PA10/20,FD25PA10/30,
FD25PA10/40,FD25PB10/20,FD25KA10/20,FD25KA10/30,FD25KA10/40,
FD25KB10/20, FD25PB10/30,FD25PB10/40,FD25KB10/30,FD25KB10/40,
FD16KA10/20,FD16KA10/30,FD16KA10/40,FD16KB10/20,FD16PA10/20,