GB/T 12459  偏心异径管 DN 600×500-Ⅱ-5.5RE

DN 600×500-Ⅱ-5.5 RE

3 FM 400-1.0-0.250hgc

BL400(A)-10 RFh40

WN50(B)-16 RF6 RF1.6F S=RF=8.04.5 S=≥4

WN 50-300 RF S=18.5

PL 65(B)-16 RF

PL 65(B)-6 RF

WN150-600RJ185/uF8c

PL100(B)-16 RF� RFRSch82FC600 RFf/@RF0 FF0312K0 RRFmRF@��

pl400-16rfRFf