GB/T 12459  弯头 DN 32-590E3Drf15аёЈВҳаёўаёҗаёЈВӮа

DN 32-5 90E3Drf15аёЈВҳаёўаёҗаёЈВӮа

BL 200-150 RF

BL 400-10 RF3f/t0-

3 FM 500-2.5c20615 wn400-6

SO 5"-150 RFm/25-300 M

47023 FF600-4.0/8

wn80(B)-100RF50-1.0 脦155 C=05

2 G 500-1.020δ1=81=60(b)-s/@SO100-

47022C-FM450-4.020r80

bi