HG/T 20592  法兰盖 BL 50-40 FMF0RF–њвХЯ–

bl50-40FMF0RF–њвХЯ–

WN100-16RF8616

wn25(b)-900 rj sch80 s=18FH2Sch6/65

47023 rf1500-0.6 未=100 h=300F170/u00ef

wn25-150 rf sch4 S=8L100-16

47023rf1000-2.5/

47065.3 B5Ⅰ δ=16h S=6d=140

wn300-300 rf s-1.6/5 K=120 n=-295R6

wn25b)-300 rf.