GB/T 12459  弯头 DN 40-Ⅱ-3180EL77.5 RJrF1)J-

DN 40-Ⅱ-3 180EL77.5 RJrF1)J-

WN50-150 RF Sch40RF1R00 RF

WN 250-900 FF Sch10s0/

BL 600-300 FMRF r

WN100-1500 FMScf�5@443RF Sa.5 RJ@66 FF WN35032h800-15010S258 Sch40SH160@RJ�

SO 3"-150 RF

LWN 20-300 RF H=2005 RJ-1671@°F5@P000

WN 50(B)-160RF