Is the stack height, maximum hit per drill bit, and feeds and speeds as a function of laminate type, board thickness, layer count and hole size controlled properly?
堆叠高度，每钻咀的最大钻次，进刀速度是否对板材类型，板厚，曾数，与孔尺寸进行管控？
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These high precision instruments are more than 20 kinds and widely used for oil industry to measure the monomial parameters of taper, pitch and height screw for oil pipe, canola and drill shank.