GB/T 12459  弯头 DN 150-Ⅱ-490EL Ⅱ-16 RFF S=4.5B)-16 RF802@RF@443RF@AF

DN 150-Ⅱ-4 90EL Ⅱ-16 RFF S=4.5B)-16 RF802@RF@443RF@AF

WN50-300RF16R3/100(b)-

bl80b)-16 rfF Sch8050 RF S

WN50(B)-16 RF�WN8060 RFF2040DFF

HG/T20592SO32(B)-6RF

PL 25(B)-10 RF=/

47065.2 A6R RFFRJ1016RF0

WN500-16RFS=

bl40-100 rfS3Р В Рў

so65-1