HG/T 20592  法兰盖 BL 450-63 M10f s5=2446rotF Ⅱh40S L=10

BL450-63M10f s5=2446rotF Ⅱh40S L=10

WN 200-300 RF Sch80=0=6RF SCH80S82-200b=2F0/ÂB)-16

PL350(B)-16 RFs=40RF0/50-110FMF Sch40F SCHF1.00-15mJB 40Aa0-2 G-sc15-2500R(B

wn200-150rf/u05°œª=2480 a=1685/1.00

so80(a)-300RF/N=35606.500-16rf40RF-1-16

WN10