NB/T 47021  法兰 FM 5350-1

NB/T47021 FM5350-1

SO 400(B)-16 RF S=10/data

bl280-25RFFF@63)-1500ervletM00@aF0300 RFhF00-1.

BL 400-16 RF/data

SO 400(B)-16 RF S=6/data

WN 150-300 FM S=10

WN150-16 RF HG/T20615

pl420-25rf

BL200-300RF C=45

pl65-16RJ421��40SJ/FcRFj@5@ R1 Sch40 SC-1