主营产品：镀锌螺丝,,镀锌螺母,,丝杆,,键条,,花兰,,卡头,,膨胀丝,,元宝丝,,鱼尾丝,,加厚螺母,,沉头,,加工各种异型螺丝,,20*906,,螺母,,如,,M8--M36,,平垫,,6--36,,弹垫,