GB/T 12459  弯头 DN 100-Sch4090ELSch5/6tati

DN100-Sch40 90ELSch5/6tati

BL50(B)-900RJ4116 f1chFcad.co

WN 50(B)-16 RF02F0RF b= b=6FFFM60030F00-1.0F Rh8hB)-25mrf H b=31 RF Sch8

SO500(B)-16 RF f

WN 40-150 RF S=5.047

hg/t20592-2009so32(b)-10rf��F S=6.3MR2709fSÃ

WN25(A)-16 T

PL80A-40RF b=/

pl