GB/T 12459  弯头 DN 580-Sch8045E3DF150

DN 580-Sch80 45E3DF150

WN500-150 RF SCH10S6FF

WN 1"-150 RFB)-16.6

WN50-16RF0 rf80FM Sc15-4.0M RCRRm-900r.

WN40-300RF-300 M2.

WN80-16FMF-2FS9f00

WN 500-150RFch4ampam S

WN200(B)-63 RFÃR

WN40-150 RFRch16016 RF1@ b=4 FM��77.5 RJrR

DN 580×10-�