NB/T 47065.1  支座 A 4698

2 A4698

47021 M900-0.66mnŽÂ´=452.m30

BL300-25rf

PL 32(B)-16 RF00S=rfpl100b-16r S-3 90EL5

BI 1001

SO 50-150 RF

DN 50-4.78 180EL

wn25-150 mfm-s-3 rf b1=1055S6-18RF10-2

WN 24"-300 RF Sch80s00rj&ampampamp;ampampampquotRF B==2p0(B)-1

GB/T29465