GB/T 12459  弯头 DN 1000-Sch2045E3DF0.600-1.0 Sch40

DN 1000-Sch20 45E3DF0.600-1.0 Sch40

wn350-600rj s=10

SO 40-150 RFF(B)-16 RF S=dF=240RF

PL150(B)-10RF b=5 RF/4 d=40 K=580 n=136 L=19.56raF0 FMFS=612=

3 FM 1400-2.5 δ0=14-2.520δ1=8RF Ⅱ5301r2.70¯�S=40 RF S=S=4 O=320 A=1

PL350B)-2.5RF Sch40orum.h