弯头 DN 25-Sch80S90ESh.

DN 25-Sch80S 90ESh.

BL350(B)-63RF.6.4101=4

GB/T9124.1 PL80-16RF S

1 RF 300-10 δs=6

so350-150rf b=3810 plFS=5=188.8

BL65-160 RF HG/T20592-

sw 20-300 RFRF055M S=3.5

bl150-300RF Sch4/

WN25-150 RF ASME B16.5

WN25-300RF ASME B16.500(aRF0 RF S=3416 H=3