GB/T 12459  等径四通 DN 350-Ⅱ-4.5CRS20r00a L40 RF Sch8

DN 350-Ⅱ-4.5 CRS20r00a L40 RF Sch8

PL170-10 RF/26Fsch

3FM2500-0.6

PL50(B)-10RF6 SCH2069102.5f-1.65RF(b5 RF1000-0.6

1 FM 1100-0.6 δs=10

WN25-25MFMsN13h400-F13Ã

47023 t 550-4.0203peq56.6 SrjRF-1.0-700F3M-1/-76

47023 rf1300-4.0/foru

SW 15(B)-63 MRFs