GB/T 12459  弯头 DN 40-Ⅱ-3.590ES δ0=60

DN 40-Ⅱ-3.5 90ES δ0=60

bl15-160rj

LWN 32-150RF0=38580S14FMF/ф▓�FFh40SRF6RF Sb16602

WN450(A)-600RF62(B)-16RF FFRF -2009 P/u00ce

WN100(A)-16RFrf52.5b=55 SCH40-16MFf/

WN65B)-100 M5f s31

5 RF 400-2.506

wn20-16rf aa=2C0MRFF.6F/0 16RFb=25 AA=/Fm

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