HG/T 20592  法兰 PL 300(B)-10 FF00 RF81�F5@PFR 10R0 RF S

PL 300(B)-10 FF00 RF81�F5@PFR 10R0 RF S

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WN 600-300 RF st20592-200940 )-1

WN 2"-300 RF Sch400s1.60rf

wn 100-16 RjRFhF7.5 RJ 200AF@F=3.5 RF S=3.56@R

bl500(b)-16fm/¯

WN80-900 RJ B=72/2&-2.5m�

WN150-40RFь╟ь÷

WN60-16RF0611aR