HG/T 20592  法兰 WN 600-40 RF S=200B=255 H=1

WN600-40 RF S=200B=255 H=1

PL800(B)-2.5 RF RF5-1100-5 DN=1400 δn=

SO 32-150 RF�F)

WN 250-16 RF Sch80/data09 H=120 S=Б-bch40Sch60

WN 300B)-25RF40S=Nm s=3.sch4RFfm300-2.5/ RF25(b)

PL80B-6RF b=2G/3

SO 350-150 RF/uRF-Lmp40

st pl65b-16rf40hF105000п�