GB/T 12459  弯头 DN 40-390EL0RF1.6nbsp-201500.5/

DN 40-3 90EL0RF1.6nbsp-201500.5/

DN 800-Sch10S TS=10f0S50-

DN 450-Ⅱ-3.5 CS=.51.0

SO80-150 RF

PL 300-16RF81150RF40.1916 T/=6F

SOP FF 10K 300AБ�0-h400 M/ 12F

WN300-900 RF SCH80S.4 FM7

WN 50(B)-25 RF=810R/h80sR1=4768 d0.13h8p

WN 300(B)-16 RF S=8

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