NB/T 47065.1  支座 BⅠ 12158

BI 12158

DN200/PN10/11B C2=20 S=4tm00M6sF600-1 FM Sch40ampampampampampa

wn50-300rfsch6718c

wn500(b)-16 rf s=57

3 B2234

2 A4608

WN10B-16M0 RF8 RFR(S)8 C=21)

HG/T20592BL20-25M-1215m73c=6s

BII 33692

BII 28129t;-300 RFp�40 RF S=3JsRF@sch80sfR5f0db0mp;