GB/T 12459  偏心异径管 DN 1050×10-Sch80RE RF3 TRr13

DN 1050×10-Sch80 RE RF3 TRr13

bl 150-16 RF=460.2 C=2-16rf41 FM S

WN200-150RF5FFM RF0Fthg206F

BL 65-16 RF HFR1f0-H1CH80

PL50(B)-16fF50 RF S

pl150-25rf a/S=54pampampampquotyh400-FfF3503400F/SrfM

BI 1500F S=5a147022 rf

WN32(B)-40G15 wn406/76

WN200-300