GB/T 12459  等径三通 DN 20-Ⅱ-4TS(S)-.30F Sch40Sp@A BL0 RF Scs�

DN 20-Ⅱ-4 TS(S)-.30F Sch40Sp@A BL0 RF Scs�

WN40-150 RF Sch40s.66=L2F

pl65(b)-25rfd=17

SO65(B)-25 G16 BB3Frf

3 FM 1000-2.5 δ0=12RF1RFbsp@b

BL 300-300 RFJRFFF0-600RJ

WN 50(B)-16 RJmpampampampampqu

WN1/2-150RF250-invok16 rf0

47023 RF500-4.0B)5-

WN