GB/T 12459  同心异径管 DN 650×600-Sch10SRC64r RF/fF1SRRF RF16516 g@Rh-Sc5FMF4

DN 650×600-Sch10S RC64r RF/fF1SRRF RF16516 g@Rh-Sc5FMF4

WN 6"-150 RF Sch10S

SO 250-150 RF

SO 32(B)-16 FM

PL100(B)-16 RF

WN 24"-150 SMH40-1f09h.80sRF6r6000.25-6RF

WN 50(B)-16 RF S=122.50=449 K=

BI 700

2 G 1800-2.520δ1=1000-0

DN50/PN40/02&3