HG/T 20592  法兰 PL 400-16 RF b=31.6 H=2=159 δ=4)-

PL400(A)-16RF b=31.6 H=2=159 δ=4)-

WN 40(B)-40RFb=1ne

SP-1 δ=8 S1=80 RFF8001=65mpamp S=1PM/.000(B0

PJ/SE 500(B)-6 RF S=4.5/64-590592ï

WN250-300RF SCH615/1328c-f4.

20615wn80-150rfs=60-1f hg�100sSfh

WN 25(A)-25 M S=3-16

SW15-150 RF=6pM 1200-2

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