NB/T 47065.1  支座 BⅠ 7756

bi 7756

SO150-150RF RF S=6�ҙsSO400(B)-16RFpampampampampampampa00-AA=1680

SO 250-16 RF

TPB-5-12..6/74-д1.6/8

耳座 A54

BL1-1/ 2"-150 RF f=2

wn50-150rf,sch40s5/642/0F

DN 250×100-Sch10 RC

3 B3344

WN65-300 RF Sch160300 RF50 RF R rAFdp&@t.5 RJ5