GB/T 12459  等径三通 DN 800-Sch10STS=10K.0RF8

DN 800-Sch10S TS=10K.0RF8

WN 25-300 RF Sch40SF)-10 FF50 r

SP-8 DN=3

wn20-150RFclaRF s=66h

WN 50-300RF Sch1602811

法兰盖wn150-300 m4 Sc/

WN 350-300 RF S=21u10orum.h0f19NC=140=49娄1200

SO100/@PL100(B)-16 RF-335)1304& RF=Ã

wn 80-600 rf5/

WN200-300R