法兰 RF 0-1/6RF504¡2000-s/@A 100

DN 80-Sch10S 45ELF5 RF0-16RF504¡2000-s/@A 100

PL50-6 RF0 RF20- m400-1.

pl 65-6 rf-25RFR

WN15-63M16R/1=11F S=F-10 RF S

47021 rf1300-0.25/64=12

BL100-10 rj/

47021c- rf1700-0.25

BL80-150 RF f1=

WN 150-1500 RFA=52=536 B=0RFRJF兰-10 R

HG/T20592 WN450