HG/T 20592  法兰 WN 25(B)-16 M B=265FfB)-

WN25(B)-16M B=265FfB)-

B WN800-150 RF SCH40S33M

WN80(B)-160RFb=42rff1000/ RF S=3.5s

SOP FF 10K 65A

PL150(a)-6 RF10400=52525o6 t.h300

WN 25(B)-16 RF S=3

LWN 500-150 RF

wn50(b)-150rf A=60 S=12.73 RF=20E

WN400-150RJ-SCH2/m6 RF070Fh=ch020)-1

WN40A-63RF1