GB/T 12459  偏心异径管 DN 1400×10-Sch20RE

DN 1400×10-Sch20 RE

PL200-10 rf25-0h40.9 s--1500/0-1.0pl

bl80-150 rf sch8n500-150rf/-605/5.0

WN 80-2500 RJ H1=20 S=10

2 M 1200-1M00B60RF B/amC60f)40–

wn80-150rf rch40/48-6

47023WN 50-150 RF H=21210

bl350-16 rf c=

DN 100-Ⅱ-5 90ES6F370 1.695Gm

SO2