GB/T 12459  同心异径管 DN 1300×150-Ⅱ-6RC

DN 1300×150-Ⅱ-6 RC

WN 300-40 RF Sch400Sch40fFhE

WN 80-600 RF S=3RF0 STF1f��RF0@RF RF16

SO 1"-150 FF

PL 250(B)-16 RF-RF15116-7.5 RJ03 rRF0 RF Sc0h

PL100(B)-16 RF

wn50(b)-16FM16r

SO 1"-300 FF

HP-2u00J0 RF)-61fпҝҪ-8ha@b0@ RFR5 RJRF

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