HG/T 20592  法兰盖 BL 500-25 RF00×1��161000)-16rfC=65,H=11880S26080S H=300-900rjR0/12-145=706AA00-1

BL 500-25 RF00×1��161000)-16rfC=65,H=11880S26080S H=300-900rjR0/12-145=706AA00-1

WN 50-300 RF S=5.65

WN 80-300 RF SCH80

WN 250-300 RF

so40-16rff SRF D=200/schdata/

WN 50-300 RF S=8.2

WN 80-300 RF S=8.2

WN 500-16 RF

BL20-160Rj

wn50-2500 rj hg/