GB/T 12459  偏心异径管 DN 150×10-Sch10RE800 RF4.0 Sc

DN 150×10-Sch10 RE800 RF4.0 Sc

PL900(B)-16 RFch120S=5-S L0 RF Sch40SF5120@R@

AWN28"-300RF S=3010

WN80-63 M S=FSchch40)-

PL65B-40M50-0.25125s0s

wn800a-16rfampampampampa

SW 10(B)-63 FM B1=8

PL200-16RJR000RF Sh80S.6c62-RF

WN25(A)-40RF S=3.38

so32