铸造(来学网)支托的厚度为
  • A.
    (来学网)≥0.9mm
  • B.
    (来学网)≥1.3mm
  • C.
    (来学网)≥1.6mm
  • D.
    (来学网)≥0.5mm
  • E.
    (来学网)≥2.0mm