HG/T 20592  法兰 SO 300(B)-63 RF

SO 300(B)-63 RF

pl 250-16 RF

3 FM 700-2.5 δ0=10

A420005 Sch10 RF0A@40@S5 RJrvlet/F sF08F FF

WN 80(B)-25 RF S=5

WN50-300RFSc150@4 Rch445A15h40S.@RFSp&@t.5

WN 25-300 RF

LWN 20-150 RF

WN 4"-150 RF Sch40S

WN65(b)-16RFG/T2/Cf6�S@RF@RF Sch40SFBB5 R