GB/T 12459  弯头 DN 125-Ⅱ-845EL

DN 125-Ⅱ-8 45EL

WN80-1500 RF A2a

47023 fm 500-2.5/40-105 S38

PL300(B)-2.5RF8A RF

WN50(A)-16 RF-160RJM/-16 RF16.5-4�F=/00 RJ Sch40H4fRFch416 RF0S R5lass6rF5F S=/0 RFvle-/40FF f0rf bb=/FR

DN25-PN16 SO RF â

WN80(B)-40M1203

pl300(b)-25 rf s=8

WN400-