HG/T 20592  法兰 PL 300(B)-10 RF hg74-15(b)-b=ch801FB)00=C

pl300b)-10rf hg74-15(b)-b=ch801FB)00=C

BIi2100=70H60CH10u00 C-eqid==1000-4016035

wn25(b)-63 rfs=S

SO 40(B)-16 RF-25rf3.

LWN100-150RF85c=2 A=159 B=150-F)-

WN25(B)-25 fm S=6 b=3 d=78 &ampampamp

bi 2200630B)-290h61пҝҪ205=

wn100-150rj s=60=126-РІ