HG/T 20592  法兰 PL 80(B)-10 RF f1=3 bRRc2/23 r

pl80(b)-10rf f1=3 bRRc2/23 r

WN65(B)-25RF092-200

BII 19000RF-10/10g18

PL 9112-16 RFrf 1JsRF@F SRF060SSM0 RF�@RF@4 Rch4406R-1500

BL 500-900 RF

WN 40(B)-25 RF S=4

1 RF 1000-0.6 δs=10

WN16A-16RF=FM0-120Rpï؟½ï؟½ï؟½ï؟½ RF

WN40(B)-63 M

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