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The traditional steel tape we use in the decoration construction always cannot meet our need for marking the straight or curved lines.The tape we design combine the function of measuring, marking and drawing curved line together. Hold the disk in the upper part of the tape and aim at the starting point with the red cross through the transparent part. Pull the tape and begin to measure. The user can use the pencil lead at the end part of the tape to mark . If the user needs to draw a curved line, one can use the protractor on the upper part to set the angle. Pull the tape and rotate the disk at the lower part to draw the curved line.
Chen Chao, Ye Wenjin, Sui Tingmeng, Xie yasong