GB/T 29465  法兰 RF 090-4.0/455/fdefi0

DN 250×300-3 RERFhg RF5 RF090-4.0455/fdefi0

SP-1F/32 aa=wn50-16r

WN20-1500 FM Sc

PL15(B)-16 RF

1 RF 700-0.25 �

WN 550-150RFRJ/u02M1RF sch41u00a3F SCHSch1612Sc rf“ГўвӮ¬Е“Ш�

WN 40(B)-16 M Sch1

WN50(B)-40m fm)/

3 FM600-4

PL25 -10 RFf s/