GB/T 12459  弯头 DN 100-Ⅱ-690EL055F schpamp

DN 100-Ⅱ-6 90EL055F schpamp

法兰盖 BL 15-40 M

WN100-150 RF sch40s-25rf /data/src

PL32(A)-25 RF b=3F2

SO 100-150 RF0invo50rfT20615F SCH

3M2200-1

WN800(b)-10rf BL0-1.6Sch408sb

sh/@bi 1000 FM=0 MFMSch1-40RJ(B)-16 RF/@Sm-4o

lwn65-300rf60=20

WN125(B)