XLS《教仪站汇总科学》

"小学科学教学仪器增补预算表",,

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"编号","产品名称","规格","技术参数","单位","数量","单价(元)","总价(万元)" "0","通用",,

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"02002","?打孔器","四件套","1.

在小学科学实验教学中,用于橡胶塞、软木塞等打孔用.2.产品为刀口式打孔器,由4支不同孔径带夹持柄的空芯管和1支带手柄顶屑杆(通棒)每套共5件组成.3.每支穿孔管长度为100mm,管外径分别为6±0.1;

8.5±0.1;

10.5±0.1.4.钻头用45#无缝钢管制成,刀口经淬火处理,表面镀铬,钻头圆周呈刀刃状或锯齿状.

5、刃口角度为12-15度.钻头圆度