HG/T 20592  法兰 WN 300-63 RF S=3

WN 300(A)-63 RF S=3

Bl 200(B)-10 rfl100-150

SO 20 -40 GF SM10006/

NB/T47023 RF800-2.5

47023 RF900-1.0 75-130

SO 65-150 RFF S==BL�S40S

WN 600 - 150 RF B=586

PL 100(B)-10 RF=1

DN 150-3 90EL.601500-s/@a600.5 &

3 M300-2.5/1RF25r.6/74-150pampquothg20615