GB/T 12459  异径三通 DN 750×750×40-Sch20TR300-Sch40 TR0-16

DN 40×40×750-Sch20 TR300-Sch40 TR0-16

SO500-16 RF-B25F0j6500

WN200(B)-160 M S=

wn 500-300 RFS=5022335FF6F)-10RF0

5 M 600-2.5 b=60SF6R

BL40-10M16 RF D=280 S=645Rch80 Sch40SRF036.4 δ=135

WN400(B)-16 RF S=1p52

WN 1400(B)-16 FM S=3.5N=13��

wn20-