GB/T 12459  异径三通 DN 750×750×200-Sch20TR0s6-4

DN 750×750×200-Sch20 TR0s6-4

WN400-300rf=K=5

wn150b-63fm1004æ

wn80-300 m sc/3-19

wn80-300 rf sch.80130SRF@WN�

wn15b-63rf s=2.55d=4-F/

wn80-40t´S-cF-3FRF2-R0

wn20(a)-16g

WN 400-150 RF SCH

pl200(b)-16 tampu00 RF Sch8 S0(B)-10 RF0 FM SchFampampamp