GB/T 12459  弯头 DN 32-Ⅱ-3.590ESF0(b)h40Sfmndef6RF8@R0 RF120.5-R RF�6 90EL=61

DN 32-Ⅱ-3.5 90ESF0(b)h40Sfmndef6RF8@R0 RF120.5-R RF�6 90EL=61

WN 50(B)-40 RF S=3.5

PL250a-2.5RFh0SL15-63RF50hCH80PL RF Ⅱr��

WN 15-150 RF Sch80/

Th(NPT)50-150 RF f1=1.6

WN40b-100FM-16RFFRFFS@

PL25-6 RF

WN 20-600 M S=4

LWN 150-300 RF SCH80

PL