HG/T 20592  法兰盖 BL 300(B)-40 FM–F S/

bl300(b)-40 fm–F S/

WN125B)-16 RF S=10

WN60-150RF6RFh.F10s92+PL301�

WN 80-600 RF Sch16

PL350B)-10RF D=495 BB

47065 BI1400-RF S5δsF08r2@R

PL150-16 FFampampampwd&a

BL 150-150 RFF-RF� S=5.59.6-RFF

WN65-16 RF�ڑ.0 /Scampampampamp

WN 12"-