HG/T 20592  法兰 WN 1800(B)-25 FF S=4

WN 1800(B)-25 FF S=4

PL 400(B)-16 FF

B WN 1050-150 RF�data5 RJ M0SR00sF0a12B)4=25(rfF1Ff@4 rf 1JsR

WN250B)-25RF

wn15(b)-16t.7402061-Rba

3 CFM 800-1.0 δ0=6

PL 40b-10 RF(b4┌2 sc0-1RF210

B WN 28"-150 RF

WN500-600RF B=476pampampampa

3 CFM 3000-