HG/T 20592  法兰 IF 50-40 MRF=128=3.616rF0-16RFF)-19

IF 50-40 MRF=128=3.616rF0-16RFF)-19

WN25-600RJSch8 S=3.4t20

3 FM 550-6.4 δ0=14 δ=108 H=180

BL600-300MC=

so150-150 fF Sch40 A=168rf=3 H=47 b=10

WN500(B)-25 RF s=4 C=13rf RF25

LWN 1"-1500 RF B=B=20 Y=1858 S9 SO

WN80(A)-150RFSCH22RlF1RF/632.

WN 5