GB/T 12459  偏心异径管 DN 200×100-Ⅱ-3.5REhWN 5

DN200×100-Ⅱ-3.5 REhWN 5

BL 100-300 RF1229 Sc.3 CMMMs_pcqq_ai

WN300-150 RF S=116.5rf B2/data/src

DN 20-Ⅱ-3 45EL Sch405.600RFFF

BL500-300Rf40/550180S.5

SO 65-150 RFF Scb0 h=120

SO 65-25 RF=s=c3/data/src

wn100-150 rf h1/

pl 400-16rf/00-150RF1bFrfF0