GB/T 12459  偏心异径管 DN 700×15-Sch10SRE

DN 700×15-Sch10S RE

SO500-300 FMF6rf515F2000-RF S

wn25-40RFSch4064.68.3*rf0S RF)-10Sh4FM8.S250/

WN150(B)-16 RF

法兰pl50(B)-25M

wn32-16rf.00 rhg/6.FRf s=8h=0 rf s=6RFRF-15

SO 12"-150 RF

47022 FM350-2.5/32-1��¸/=

TH16"-600RF

wn50-15