GB/T 12459  弯头 DN 100-Sch4090ELlF100-F7F=

DN100-Sch40 90ELlF100-F7F=

WN10-900 RF) RF Sch40 RFR1/600 RF S SCHTA

WN100-16RF SCH4025-1500 RJ0ĉ/r

pl80(B)-40 M

WN 40-150 RF Sch80

so25-900 rf/brfRFf0-4.0/65 Sc1staB0F

wn 25(b)-100 fmd17 H=00(. sch40@rfMR

wn600b-300m fm28.6 RF66157Sc

DN25/PN16/1