(来学网)下列中厚皮片哪一组的厚度是正确的
  • A.
    (来学网)0.3~0.5mm
  • B.
    (来学网)0.5~0.7mm
  • C.
    (来学网)0.7~0.8mm
  • D.
    (来学网)0.75~0.8mm
  • E.
    (来学网)0.8~0.9mm