弯头 DN 25-Sch8090EL D5

DN 25-Sch80 90EL D5

BI 600-300 rf80F

WN50-150 RF L=/ HGd

WN80-2500 FM B=65HG/T205

PL500-16 RF HG/T20592300-150/51 SCh8

BL25-40 GRFF5FM80Sb=4 AA=13561.6/48-120 δ1

PL200(B)-10RFHG/T2059

SO15(A)-25M009 sch80

47023RF400-2.5/FF0(a) G Sch40SF5500

PL80(A