NB/T 47065.1  支座 BⅡ 17751

BⅡ 17751

SO 3/4"-300 RF

WN 25-25 FM000 RF Sch40S/6/

BL 600-6 RF

WN 24"-150 RF Sch40 S=16

DN1000-PN16 PL RF Ⅱ

WN80-600 GrJ d

LJ 4"-900 SGf40s H1r NS T8F

wn40(b)-40fm

WN 89-16RF4r360600 RF5 RJ000S=11Sc3¶��77.5 RJ R1caRF ScJ@6@50