NB/T 47021  法兰 C-M 900-1.0S0PFMpam0610 N=/l

47021 c-m900-1.0S0PFMpam0610 N=/l

PL 40(B)-10 RF

WN300(B)-600 MF0f s=20=67-16F0615- RF S=4

WN250-25 RF

WN 700-300 RF S=10

WN25-150rF S=6

LWN 6"-900 RJ Sch80

47065.3 B8

WN 600-300 RF S=10

PL 32(B)-16 RFRF5975090J=4750-92S=143.8 b=250-16 rfch1202