弯头 DN 50-Ⅱ-490E3D

DN 50-Ⅱ-4 90E3D

47023 FM1000-1.0 D=1142 D1=110

TH20-150RF2.5RF2

WN65(B)-63 G.6 S=5B=2200(b)-10=5701.6RF00(bs RF

SO 200(B)-10 RF/

WN65-25 RF S=6

NB/T47021 RF600-1.00-0.665 m/60-155F3=6

SO450(B)-16T00 δ

WN40-300RF

PL125(A)-16 RF

hg/t20592 pl40(a)-16