GB/T 12459  异径三通 DN 125×125×20-Sch10STR

DN 20×20×125-Sch10S TR

WN50(B)-16 RF S=5.5

c-PL300(B)-16 fmA=39

SO 20"-150 RF

WN100-16 RJ S＝11mm5 wn400-600rj&am s=5.50RF

WN50-300 T K=22F Sch40C0RF7_4161 rf.31

lwn50 -150rf sfr.6/4mpam

47023 fm1200-1.6/84-195

WN40(B)-160 rj(rfb=30Fe.FD/a6