GB/T 12459  异径三通 DN 350×350×200-Sch160TR�═Бd1=83

DN 350×350×200-Sch160 TR�═Бd1=83

WN 100-150 RF30 RF00/12F00 8=5=9111=2-M S=56hRF0-16I0S

WN 20-900 RJ Sch40S0c6/u00RfF-4o250(

wn 25(b)-16 rf S=315-20c=

AXB-5-25-20H0�43 d=208 b=5 L

WN 40(B)-25 RF S=64 S=≥

wn80-25rf s=10.5 Â&ampamp;amp;