NB/T 47021  法兰 RF 600-1.0S300 RF�â´=60 h=12

1 RF 600-1.0S300 RF�â´=60 h=12

WN 500-40 RF S=12.52RFFS=1=124

LWN 32-600 RJ H:3720Aa/..6sch RF Sc4F-RJR64Р“ТңРЁТ№Р’ТӘR

LWN2"-150 RF Sch40B)f0rfF8 rf1000-050-5-15 Rjsch40/otS=80-300

hg/t20615-2009 wn25-150rf b=15â¶

DN25-PN25