GB/T 12459  弯头 DN 40-490ESA-s-

DN 40-4 90ESA-s-

SO450B-40M.0/u5jå

SO200-25RF7.5-2

WN80(B)-16 FM S=5A5)-1009FF L=20rf-20p0-16F5 S.8M

TPB-2 RF Sch/n=6004&ampampam

WN80-160RF Sor=F S/4&;amp;amp;a

BL500-150RFG000p1 S=8160RF10016mn/u00Rњrf15a0@3 RF1

PL200A-25RFch81.0 6-12bl

PL 40