HG/T 21574  吊耳 LP-18

LP-18h4=29 b

WN 8"-150 RF Sch5S

DN50/PN16/11B

PL50(B)-10RF HG/s/s_

BII 33230

47023 FM700-0.6=40=8/

SO 450(B)-10 RF

1 -fm400-1 S S@5c2@=6.

HG/T20592-2009 WN80-25FM S=10F4

WN 25(B)-16 T Schch100=6 RF3.B)-16 FF b=3d=68 b-600R7002RFj1=pamF@RF0RF247