NB/T 47065.1  支座 BⅠ 250

bi 250

SO 6"-300 LMmpa؟â76 RF RF S=6F 5

WN 50-300 RF Sch40a

PL 125(B)-10 RF，HG/T 20592-2009.0s

PL 200-16 RF rf s�

1 RF 1100-0.6 δs=10 S

BL15(B)-16 RF d0(b0 FF0RF��Fffh40Sc

BL 10-150 FFn2

PL 250(B)-25 RF δ=7

WN 100B-40 RF S=6A)-300RF