HG/T 20592  法兰盖 BL 50-16 RF--63 MMRFf000g910H1.6���„–ز–�0 TR0-)--63 MMRFf000g910H1.6�

BL 50-16 RF--63 MMRFf000g910H1.6���„–ز–�0 TR0-)--63 MMRFf000g910H1.6�

WN25(A)-63 RJ NA=48 S=4.5 H=62 C=28 d=75219 B=

WN250B-100 RF S＝15/132=

B BL 800-150 RF

WN65B-25GS=4rf c=4

bl150-10rjRf012

SO150-300RF

WN 2"-150 RF Sch140

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