HG/T 20592  法兰盖 BL 65-6 FM5RF00-16RF0)-16rf-120-5s/1.013 f1=2.5.5/

BL65-6fm5RF00-16RF0)-16rf-120-5s/1.013 f1=2.5.5/

PL150 B-40RF0.5665.2 A2-800

wn80-300 rj s90RFdr=8)-16A50J5 S=06RF0 R-25rf SCH10S5mh

wn80-63rf375r-16 FF000R02*49 R

WN 80(B)-25 FM S=4

HG/T20592-2009 WN 200-63 RJ S=16

5 CM 800-1.

WN 300-900 RF Sch80

B