GB/T 12459  弯头 DN 150-590E3D10RF82/u00a

DN 150-5 90E3D10RF82/u00a

WN 150-150 M2-WN400-94M/0sf)R

BL600(B)-150RFRFF/F@c.0rf.0)-F0hRFB)-16RFquothg20

DN100/PN10/11A/u0080/u00F5(0

2 FM 950-1.6f1.0/70-1

pl100b-16rfG/F

so200-16 RFRFch400 asme b16./20 L=/u00c6/data/src

SW 5"-150 RJ

PL50(B)-16