GB/T 12459  弯头 DN 25-3.590ELM S0160s0F1.F0/

DN 25-3.5 90ELM S0160s0F1.F0/

wn40-300 m sch80=56

LWN25-300 FM-1.F0/0-ad8F2MRFm

WN 80(B)-25 RF S=8

WN 80(B)-16 RF S=8

WN 25-150 RF S=3.0

3 RF 1800-1.0 δ0=10

1 FM 700-0.6 δs=10

BI 1000

so450(a)-16 rf&ampampampampampampampwd=&ampampamp;amp;amp;