GB/T 12459  翻边短节 DN 1400-Sch60LJS S000-1Fc2/u

DN 1400-Sch60 LJS S000-1Fc2/u

WN150-300 g0JstSc16RF0-300

bl200-100mf=15250

PL250(b)-10RF592-09/rf RF15Fs/@W@Wf0RFF/6 RFF 256

WN250(A)-40FM92=82/-

3 FM 500-2.5 ะ0 RFN sc941052

47021 Fm600-1..45RF200-6068Fh0 S

so50-10rf&=790 A3

WN25(B)-40 M S=5

wn80-