HG/T 20592  法兰盖 BL 450(B)-25 FF.6F=592-200/5R´=1200-4.05

bl450b-25ff.6F=592-200/5R´=1200-4.05

wn200-900 rj sch1616RFine-4.0=126-

wn50-16rfs=66000-1

wn50(B)-16 M804 H=265-300RFB-10 R1400-10FF2=3s=3.2 rf100

wn20-900rj b0.�93.5,203u0

wn40(b)-40 rf s=3

WN500-25 RF B)-840 m.o5

WN50(B)-900 RF SCH40s5M S=85

PL