GB/T 12459  异径三通 DN 600×600×250-Ⅱ-12TR S=3.05 RJ

DN 600×600×250-Ⅱ-12 TR S=3.05 RJ

PL50A-16 RF b=3b=380-25RF RJ S=550(B)-25RF5

WN20-600RJ RFRF Sc RJ Sch1607021@

A WN 1000-150 RFШўВRF=10bo.j02550 RF-

WN 65(B)-63 RF S=4.5XInvoki0-150 RFRF ⅡSJ-��

SO 40(B)-16 RF0-3000(500-0=39aw

wn80-600fms