GB/T 12459  弯头 DN 450-Ⅱ-sch1090ELRJ Sch40SR

DN 450-Ⅱ-sch10 90ELRJ Sch40SR

SO50-10 RF HG/

WN 150-150 RJ Sch40S

WN 800(B)-10 FF S=12

3 FM 2000-1.0 δ0=18

3 FM 2200-1.0

WN300(B)-63 RJ S=22t

SOP FF 10K 65A

WN200B-16RF

WN350-1500 RJ Sch40 d=583 f1=3.5 D=6650=��”F-16 RF000أ�505FSFS1@4b78Hor