GB/T 12459  弯头 DN 80-590EL23.6260-4Fl2(B)-

DN 80-5 90EL23.6260-4Fl2(B)-

BL50-16m800(B0-1600RF1200bF1

PL100(A)-25 M¦Â 1100-f/@SO1/1

BI 300RF016rfd/F15007wn2RFF S=5.166

PL25(B)-10 RFScJ Sch80S0 RF S=36M 6/

a 2500° so

pl80-10rf b=2h76

PL65(B)-10 FFb)-25rfG/63m=457 h1=RF Sc

WN350-10T-1