GB/T 12459  同心异径管 DN 250×150-Sch40SRC

DN 250×150-Sch40S RC

3 FM 900-2.5

BL 40-16 RF

WN40(B)-40 M2RF

WN 50(B)-100 RF Sch80

WN 50(A)-16 RF S=4.15

WN 40(B)-16 RF S=5

WN 100(B)-100 FM

hg/t20592-2009 so50b-40 rf

SO 24"-150 RF15 RF Sch40�� L1FFh/0R6 rm1506 rf=4.53MRF15)0100-15FRF900-1.00