GB/T 12459  异径三通 DN 200×200×90-Sch100TR

DN 200×200×90-Sch100 TR

LWN 40-300 RFFF5 RF

pL250(b)-2.5RF��-

wn40(b)-16m b=2 S=3.2

PL 100(B)-16 RF b=3

WN65-40FM S=5¢0F=2830-16RF2R

BII 14004

47023 RF1500-0.6 δ=70 H=9999O F δ=70 H=10000000000000

WN450-150FF/

BL 32-1500 FMf33R023F020615-200