HG/T 20592  法兰 WN 80(B)-63 RF S=50

WN 80(B)-63 RF S=50

WN 4"-300 LFM S=12.7

SO 6"-150 RF

so250-150rf /50 RF)-1R

47023 C-M1000-1.6/56��@6LT0409F-.5°FS10R@R4S

BL3500-10RF023R/

SO 2"-150 RF

SO 65(B)-16 RF

TPB-2

WN 80(B)-40 RF S=S=4sF RF.5 RJ0 RF S=12 180ES S=3.5.32086