GB/T 12459  等径三通 DN 250-3TSch40sh3B==0

DN 250-3 TSch40sh3B==0

5 M 400-2.5RFch40RF TS RJ Sch80Sl.5

dn450hg/@BI 10009F6.40RpamF D=127-

wn80(a)-160 rj s023 RF10000 fm�77.5 RJRF8 c

wn50-150 rf s=4207

WN80-1500mRF(a)-40 rfrf

wn300-300rj s=180O2m

pl20(B)-10 RF/f-FS4r

wn 600-16 rf s=

47021 T