GB/T 12459  弯头 DN 80-Sch120180EL-013BL8n=

DN 80-Sch120 180EL-013BL8n=

SO500(A)-16 M/1151-1RF205F1.

WN50-150 RF H=8J402.5f)-10R

pl50(b)-16 rf c=18

BL20-63FF=334404-15 wn350

WN150-900 RJ15f=14(h120 RF S/=65

pl100-6rf6 LTf1000-1.0Ff/u00c3/u0083/u00c2

3 FM 1000-1.6 δ0=10=8 RF63M30

WN200-600RF