HG/T 20615  法兰盖 BL 32-150 RF”è§ éâB)-184=4.5

BL 32-150 RF”è§ éâB)-184=4.5

WN 150-300 RF Sch80S1 H=rf1000-1.

wn150(b)-25 fm s=7.1

HG=T20592-2009BL200-63 RF

wn25(b)-16 rf f1=20 d=-16rfF@WN1Fb

WN1800B-16RF100-300rf s=8&amp

so500-40g260-F Sch4B=4њ

47021 C-RF 600-0.6 δ05RFS=8RF R

47021 C