GB/T 12459  弯头 DN 80-Sch10S90EL1mfp09s=2B-1c

DN 80-Sch10S 90EL1mfp09s=2B-1c

47021 c-fm 600-1/ K)-16/a4/uF Sfmch802php00

WN200-150 RF SCH80S5R

WN80-300T1.0/44-1050 δ35-260150

47023 RF1300-4.0 t/u0 RFF66RF

BL450-40G/90- RF256-1/6 /u00ce/r

WN25(A)-40 RF S=3

NB/T47021 rf450-1.6p-2015

WN250-150RFSC