HG/T 20592  法兰盖 BL 300(B)-10 RFpnbspæ rfso2501.6/ c=rf=

BL300(B)-10RFpnbspæ rfso2501.6/ c=rf=

WN 300-300 RF S=20 c=19

5 FF 2350-4.020δ0=1400 RF-25 RFsct20615w70-Schm60S RF Sn=1s4 RF B=B=R802pnbFF AB=0 D=2

WN 500(B)-16 RF S=12 A=F50050RF�ï

SO25B-16 RF D= A1=0-1.

WN 150(B)-25 RF S=506 DN=15S=90RF

B