HG/T 20592  法兰 WN 50-63 RF s=6HG/T 20615-2

wn50a-63rf s=6HG/T 20615-2

WN 80(B)-16RF S=106 RF A50 RF S

BWN700-150 RF/s=6RF42F=6

WN 150-300 RF96M8-105/ch40 RF MXrL2FRF8-1

BL200-300 T=4ffRF WN1500-50

SO 150(B)-10 FM63 RF S=12RFrf0RF00--40

A WN1200-300 RF/-1.0ampeqid

B WN1100-300 RF B=1082

WN500B