NB/T 47065.1  支座 BⅠ 3257.5)-57 dJ S=1G

BI 3257.5)-57 dJ S=1G

WN65B-16RF S=4 mh80-150 RF wn 200G

PL450-10 RF5 Оҙ0=1250RF6

pl20(b)-10rf5010-58 S=8rf sch40 r

GB/T29465 M500-2.5R065 M500-2.5

DN150-PN6 wn R0-4.0/64-CH20F0 F)

SO50B-10Gd=495=8b)-/-RccRF6Mc16Ã8

WN 50-300 M S=16.6ampwd=&20

nb=t