HG/T 20592  法兰 PL 50(B)-16 RF 400 4.6/116-150 R0.6 /u0J S/330FR

PL50(B)-16 RF 400 4.6/116-150 R0.6 /u0J S/330FR

WN 3 1/2"-150 RF Sch40S

A 2500F0(B)-150 R

WN500-16RFS=1000/ S0

WN 200(B)-100 RF Sch40S0-10rf-

WN500-150 RF schstd/RF0 R

NB/T47021 M400-1./

PL65-16RFSRFAA=222F

A20004 rf1000-1.0 п�FF bFM0FF-150RF