HG/T 21574  吊耳 SP-10

SP-10001

so20b-16rf b= R=440-Gu0

BI 7762

SO 50-150 RF

NB/T47022 RF 900-1.6/83

3 B4502

47022 c-fm1200-1.6/64

WN 4"-150 RF Sch2677

WN400-900 M S=22 s=10

WN 150-150 RFSR0 FMfmFRFSch80S�RFRRF0-F@0)-16 RF1521AFF@5c2@RF@4420-300 mf18S7025M M S=3RFmC