HG/T 20592  法兰盖 BL 200-100 M

bl200-100m

WN 25(B)-40 RF�m@80

WN80-25RF S=10.5 &ampampampampampampampnbsp

WN150(A)-2500RF SCH160RF rfrf500R40Smph8-220

BL25-40TORF

SO 40-150 RF620

WN 50-900 M SchRF

asme b16.5 wn40-150rf

WN80-600RJSCH40

so 125(b)-16rf.. W rf-1-.5 RJ RF0MF;amp;