(来学网)弯制双曲舌簧常用钢丝直径为
  • A.
    (来学网)0.1~0.3mm
  • B.
    (来学网)0.4~0.6mm
  • C.
    (来学网)0.9~1.0mm
  • D.
    (来学网)0.7~0.8mm
  • E.
    (来学网)1.2~1.4mm