1 Ruled drawing means processing the straight lines in the surface of the aluminum plate with a mechanical friction method, it has to brush the surface of the aluminum plate scratches and the dual role of the surface of the decorative aluminum. Ruled brushed continuous silk pattern, and intermittent SiWen two types of continuous filament pattern available scouring pad or stainless steel brush through the surface of the aluminum plate the continuous horizontal straight line friction (such as hand-in device technology grinding or planer grip wire brush grinding brush on aluminum plate) to obtain. Intermittent SiWen generally in brushing machine or wipe pattern on processing obtained. Preparation Principle: groups the same direction as the rotation of the differential gear, on the group for the rapid rotation of the grinding rollers, the group for the slow rotation of the rubber roller, the aluminum or aluminum alloy plate from the two sets of rollers through the brush out delicate intermittently ruled. Random pattern brushed under high-speed operation of the copper wire brush aluminum plate around a mobile friction no rules, no obvious lines of matte silk pattern.