HG/T 21574  吊耳 LP-31

LP-310 Sc°plM0

pl80(B)-10RFP22C/0s=f80(b5

DN 400-12.7 90ES0/s

bi600-f/rf

LWN80-150 RF Sch80/@-16rfRF0RJ505/f

PL50-16RF(AF26/84-1708-12510d=1=74nRF RFch

47065.3 B2916t/B=1R

WN20(A)-25RFfR)ch80H6959ch01.6/CH80 S0-f/0 S=5=5&-40RFR

WN350(B-16FMMF(h8/RF