NB/T 47065.1  支座 A 1248

4 A1248

3 CFM 600-1.6

1 FM 600-1.6=16

4 A1722

WN 12"-600 RF Sch80

WN FF 16K 50A

WN 15-300 RF Sch40S

SO150(B)-16 RF

PL 600(B)-10 RF

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