GB/T 12459  等径三通 DN 500-Sch40STS30F

DN 500-Sch40S TS30F

WN600-150 rf

bl100-16m0rf b=386.40-16rf0rf hg=t

PL500-6RF15�am

PL250-10ff C=2M 110片 31-6 TS/

2 RF 600-4.06F6.0)-2.5ï¿80)(B)-16 RF SCH4M9

WN50-16m9G/0J6.6010-166000-6.46 RF800

wn80(B)-25RF.16

bwn900-600rf b RF050-3

wn25a-16r