HG/T 20592  法兰盖 BL 200-16 RF

hg/t20592-2009 bl200-16 rf

WN25-150 RF T=4.55)-10rfH.

wn100(b)-40rf sh40s04b=421695FSRF

WN 300-600 RF Sch100�╠Б∙╔п

WN80-150 RFss0on50)-ervRF/quo0rf101300

47023 rf350-2.5=70-165

SW 65-300 RFf/h RF S=00 HG/T209

so80(b)-16 rf=402.52-20

47023 F