GB/T 12459  弯头 DN 150-Ⅱ-590EL-300LT

DN 150-Ⅱ-5 90EL-300LT

PL25(B)-16RF δ=4

WN 450-150 RFRF Sc167110b)1f 80ў�

WN 20(B)-16 RF S=1.65

SO 450b-10rf5FFpF©01 S=

WN50-160 RF S=8

WN40-150 RF Sch40

bl65(B)-63 RFFFh80h00 RF Sch80/@���h40ShR

WN450B-63RJwn400-600rj

3 FM1000-4.0=21.65