GB/T 12459  同心异径管 DN 1050×10-Ⅱ-4RCRFTSrf/f sch40M500�3g/

DN 1050×10-Ⅱ-4 RCRFTSrf/f sch40M500�3g/

1 RF 700-1.0 δs=10R56 R

47021 FM1100-0.6/S=106.5600FF S

SO15a-16rf(B)-

DN65-PN16 WN RF I

3 RF 700-1.6 δSch405

wn80b-40fm-10T-RF SCH(A0cs1FRF0 ScN15f,HG/T20592-2F-60mqov5

SO100-600RJ-R0/40ch400F/319.6

WN4