HG/T 20592  法兰盖 BL 400(B)-16 RF,HG20592650-1.0150 RF S=4.5 S=3 A=15mp

BL400B)-16RF,HG20592650-1.0150 RF S=4.5 S=3 A=15mp

WN 32(B)-16 RF S=3.5

A wn1500 -300 rf207 C=1166 r

BL80(B)-16 RF S=23ƒâ.25 δ=708025

PL 150(B)-10 FF D=28 B=20 H=000-F8mpampam

wn80(a)-25 rj=4

wn40-63rfs=7 S= B=101.� PL480

PL 300(B)-10RF0rf sch4