GB/T 12459  异径三通 DN 350×350×200-Sch120TR

DN 200×200×350-Sch120 TR

BL1000-300 RF45-6f00-2.50920-6

wn15a-160rjF b=5

SO500(B)-10 RF00-1.050-0.690-40f-40F

wn20-150rf20 sch160800-15

lwn 600-150 rfampampampampq/44-106

WN 125(B)-10 RF0- RF B=52.6 RF Sch3000 RF S=1�Ã

wn150(b)- 160fm

wn400-300g