NB/T 47065.1  支座 A 1090

47065.4 A1090

BL RF 20K 450A

SO 200(A)-10 RF b=2

DN80-PN40 PL/W-A RF Ⅱ S=4

wn 600-600 rf b=598 a=638 hg

WN 4"-150 RF Sch5009RJsFSch40

PL250-16RF

WN 4"-150 RF Sch5112

WN10B-63rj8-1RF50r�ҹа

WN 650-150 RF Sch80ch80 B=317t s=�1@RF8@R0