GB/T 12459  异径三通 DN 1200×1200×400-Sch120TRpampampampa

DN 400×400×1200-Sch120 TRpampampampa

wn150(b)-40fm s=8

20615wn250-150rf1001æ³

wn250(b)-25ms=6h160

wn25-25fm s=8.5ampampampam

WN250-1500 RF N=371

PL 200(B)-10 RF D=405 B=260SRFhSch14

WN200(B)-16 RF/70-137=4 D=210 C=30 N=

SO500(B)-16RFR560S=S=118/