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the angle of the core drill bit warhead (drill bit and front angle position)

Summary: 严禁用铁锤敲击钻头或岩芯,严详细20181026 廊坊10马力混泥土钻孔取芯机采用双立柱结构螺旋给进方式,稳定性好,操作简单省力...

it is strictly forbidden to use a hammer to strike a drill bit or a core, strictly detailed 20181026 langfang 10 horsepower mixed soil drilling core machine uses a double tilt structure spiral to feed, stability, simple and labor-saving, easy to move, easy to move, high-speed cut. the present invention relates to the field of electric tool technology. specifically, a core drill bit application of the annual wheel core core drill core method for studying the growth and growth characteristics of wild trees, need to be on the trunk . the largest wholesaler in the core drill is the largest hollow drill bit, a batch of hollow drills, a core drill bit, a rail drill bit fast, and a hard alloy steel plate drill, a hard alloy.

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