GB/T 12459  异径三通 DN 40×40×25-Sch20TRRTRTRTRTR51.6R

DN 40×40×25-Sch20 TRRTRTRTRTR51.6R

WN 600(B)-10 RF S=6

BL10-16RF

3 FM 1400-1.6 δ0=6554RFF/

wn250-150rfsch0 S=5

PJ/SE 300(B)-6 RF S=6

WN 20-150 RF Sch40S

WN50B-40 RF

WN50-150 RF

WN1400(A)-10 RF/f sch1=25.2m5040fff3FFCH24A)-b)-16gC=14 B400 R=14 C=60