主营产品：螺丝,,不锈钢螺丝,,机米螺丝,,止付螺丝,,紧定螺丝,,顶丝,,不锈钢机米螺丝,,不锈钢紧定螺丝,,不锈钢顶丝,,内六角沉头螺丝,,内六角机米螺丝,,平圆头内六角螺丝,,平杯,,圆杯,,杯头,,DIN912杯头,,制造业（法律、法规和国务院决定禁止的,不