NB/T 47065.1  支座 BⅠ 2400 h=486 δ4=10

BI 2400 h=486 δ4=10

LWN 40-150 RF B=10=/

wn450-150rf sch8h80S=155R

WN15-63M)40samp

BL350-16 RF

DN150-PN6 WN RF Ⅱ S=10pampamPL200-1hj@5@RF Schh801-2B)-9.vletM00@aF0-20

SO 12"-150 RF

pl600-10 ffrRF6r S)-16RF HG/T

SO2"-600 RFch80s0175

PL12