HG/T 20592  法兰盖 BL 100-16 FF D=675 K=605D=21

BL100-16 FF D=675 K=605D=21

wn200(b)-16fm20 S=3.c H=88.50009 P0RfH1=120

bl25-150 rfC=18.00 RF B=50A S=60

AXA-1-10-1220-1җ┬ЕлР�

BL 500-16 RF

lwn50-150 rf b=52 h=151/

47023m500-6.4/83r RF=/0n8 20=f00-4

BL 400(A)-100 RF

WN 150-150 RF25p