HG/T 20592  法兰 PL 40-25 RFР“Т“

PL40A)-25RFР“Т“

LWN 2"-300 RF B=10)-16

PL65-16RFF40-17f S=6 rf s

SO 250(B)-10 RF

WN25-300 RF sch400 RFWN2/0 RFWN/

pl450(b)-25 ff/*

WN15 (A)-25RF S=3

pl350-2.5rf0.5 RJ950FF DF C240500ampa-16rf/R

wn25-16rfs=6FS

WN 80(B)-16 RF S=822880. Sch16