HG/T 21574  吊耳 SP-91

SP-9195

WN 15-1500 RJ Sch40S

PL 20592-16 RF�-4.@��datF8rf50 RFS5 RJ2A=F6m386@

WN 80(B)-63 RF

bi 4611

DN40/PN16/12B

pl200-16rf

PL 25(B)-16 RF

BI 1272

pl200-10rf0ff C=29-1.0.0 δ0=12B=550HG/B=f0 RF-40RFht5S=5.6@1633-1991F0 RF S=5=35Ru0083 FFb=80@