HG/T 20592  法兰 PL 400-25 RFFfhh80S5F H=4/ch4╟п│�

pl400-25rfFfhh80S5F H=4/ch4╟п│�

WN 50-150 RF S=5.6FhS=

WN 600(B)-16 RFFcH1FMN150-

WN32-16GF0 RF.3 C=22592jmxiR

1 RF 1100-0.25 Š±ĀŃ‚Ā–Ā

WN 600-150 RFt;-600 SFMG20615

WN 50-150 RF120WN2s=5.54-g

WN 50-2500 RFrf

WN 600-1500 T Sch80

BL900