HG/T 20592  法兰 PL 80-40 Mn150-6-109PL0 R

PL80(A)-40Mn150-6-109PL0 R

WN 200(B)-25 RF S=600

3 FM 900-6.4FRFР3h=3=��

nbt47021 m500-1.04=1402-

WN 80B-300 RF64B1F S=3.5

bL250(B)-10RF)-16 rf s=6 fmm00-1.6/130

法兰WN25-300 RF S=4

PL300-25MCH80FRF9000-1 RF�wn200-1

wn 150(B)-16 RF h m

WN200