HG/T 21574  吊耳 SP-68

JWN 40×80-25 RF S=6

JWN 25×50-25 RF S=10

SP-68.540S-16 RFâ´s=0-1.0 δ=60 H=120–F

JWN 25×50-25 RF

JWN 25×50-25 RF S=6

JWN 20×40-25 RF S=10

JWN 20×40-25 RF S=6

WN 16"-150 RF Sch200 S/pam05-100 H0b1/0=6=12.55)fm0RJ4010RF-F-1forF0 S/pam05-