HG/T 20592  法兰 WN 300-10 RF A=325 B=30856

WN300-10 RF A=325 B=30856

WN350(B)-16 RF00(B)-16 RFs=6 δ0

1 RF 500-1.0 δs=4-B=u

A WN 36"-300 RF S=13A0F-=3.5RF

PL 600(A)-16 RF D=81380/@47023RFr5РұВҶСӮ

WN 1"-600 RF S=4

SW 25-300 RFF/5h0-205S==0.Sch80 H=5

BL 300-10 MF RF.0630011sch4