GB/T 12459  偏心异径管 DN 1300×10-Sch40REs150/

DN 1300×10-Sch40 REs150/

WN80-150RF S=5.5

so 250-25 RF

WN80-10 RJSch403h 45 s0ch0

WN100(B)-150 RF S=6

NB/T47023 FF900-1.0

WN 150(B)-63 RF S=12

LJ 12"-300 RF Sch10S

SO 16"-150 RF

WN40-2500 RFS121f5800 RFS00-15RFc48�M0-1.6/42-130@RF@4�rF