NB/T 47023  法兰 FM 1450-1.6/12.550PL613/

NB/T47023 FM1450-1.6/12.550PL613/

LWN20-300 RF B=13

DN 65-Ⅱ-5 180EL.5800-1.66RF.5 R

BL65-16RFF000 RF FFh800eF ScB-63FM5n686RF60

wn80(b)-16 rf d=13/h4a

WN 18"-600 FF S=STD B=438

PL100(B)-16 RjM=13 Sch40(b)-

47023 CFM1500-4840RT SB=7471013012

WN