HG/T 21574  吊耳 SP-36

SP-3685

PL500(B)-6 RF

PL250(B)-16 RF

BL 40-300 RF

47065.3 B1

bi 5373

DN 150-Sch40 90ES

SO600(b)-10rf

PL 25(B)-10 RF

wn80(B)-40RF S=11F SHC80S VO=3)-63 RF B=78 90EL H1=12δs=5f/@B WN1000-150 RF RF/95f1m16 T s=s=f61scg659 H1=2516ampampampampampamp/u00