HG/T 20592  法兰盖 BL 600-10 RFF5c-rf0-= .6/1A)-150f50-120f-16 RF0-

BL600-10 RFF5c-rf0-= .6/1A)-150f50-120f-16 RF0-

wn50b-40mampquothg20615 wn400-600rj&= RF)- undefi

lWN25-150RF H=158

wn50-150rf ãƒTB)-16 RF/g

PL65(B)-10 RF d=120 f1

wn300-150 rf sch40/H45Rj S(RSCH40SF0180SFF

wn125(b)-25 rf s==102

B WN1200-150 RF B=