GB/T 12459  异径三通 DN 1050×1050×15-Sch60TR

DN 15×15×1050-Sch60 TR

WN40(B)-10 RF

wn20-300rf,sch809B1000-1f0/ S=65 B/16 RFa

PL500b-10RF b=3

WN300-10RF S=4.7

20615 bl50-300rfh=82 h=

WN40-150 RF. S=5 H1Crf201-600FM 忙艙陋=10

wn800-10RFFSmpampampampa

PL350b-10rf/.=-10rf/ScrfSh2

WN250(B)-100mF