GB/T 12459  同心异径管 DN 40×20-Sch80RC

DN 40×20-Sch80 RC

asme b16.5 bl25-150 rfB=69M1 H=210-25 RF LFM Sch40SSS=60RJ&a

B WN 54"-150 RF B

WN25-300RF0»Â¶M2Rpamp0(00@407.5 RJRF=T Sc

& WN400-600RJ&ampampamp;ampquot/

wn 25-300 rf sch8025@4�

WN100-16RF12.5 &a

wn32-300fmch8 H

pl32-6