NB/T 47065.1  支座 BⅡ 2773

bii 2773

PJ/RJ 80(B)-6 RF

pl300(a)-10 rf(a)RF2-2254&;amh405sFF B

SP-9280

SP-4096

WN 50-150 RF426

WN 600-300 RF S=201

WN80(B)-16 RF5057

bl100-300gpampa

SP-89673RF4-215RFh40.5 RJ5 RJy0�兰 WN 50-300RF Sch40s ASTM A182-F316L7550 RF H=362 Sch57F B=3000 R