Original title: [Popular Science Garden] Can you really use a tape measure? Tape A necessary measure for work But it took so long. Did you find that the ruler hook would shake back and forth? What is the number on the ruler shell for? Let's take a look at the video. China is a big producer of tape measures. It is produced in Yuyao, Zhejiang and Shangqiu, Henan. The quality of the factory in Yuyao is better. Of course,keychain tape measure, the price is more expensive. It is also produced elsewhere. The more famous Ningbo Great Wall Seiko I believe everyone has heard or used it. Now that we're talking about tape measures, let's take a closer look: The construction of a tape measure The tape measure is mainly composed of a shell,custom tailor tape, a tape strip, a brake, a tape hook, mini tape measure ,bespoken tape measure, a lifting belt, a tape spring, an anti-falling protective sleeve and a label. The specific functions are as follows: 1. Shell: ABS new plastic, with glossy texture on the surface; resistant to falling, wear-resistant and not easy to deform. Expand the full text 2. Ruler bar: 50 # Grade I strip steel with a thickness of 10 wires (0.10 mm); 3. Braking: With upper, side and bottom three-dimensional braking, the hand control feeling is stronger. 4. Ruler hook: The rivet ruler hook structure is not easy to deform and ensures more accurate measurement. 5. Lifting belt: two types of rubber and nylon; high-grade and high-quality; strong and durable, with good hand feeling. 6. Ruler spring: generally made of 50 # carbon steel and 65 # manganese, with strong toughness and high accuracy. 7. Anti-fall protective cover: high-quality plastic to prevent falling and collision damage and enhance durability. 8. Labeling: Labeling production can be carried out according to customer requirements. How a tape measure works After the tape is pulled out, the fixed tape can be rolled up because there is a spring inside the tape. When the tape is pulled out to measure the length, the length of the ruler and the spring is actually lengthened. Once the measurement is completed,large print tape measure, the spring inside the tape will automatically contract, and the ruler will also contract under the action of the spring force, so the tape will be rolled up. Tape measure manufacturing process Editor of this issue: Zou Fei Reviewed by: Lin Wei Source: Home of Pump and Valve Total No.528 Return to Sohu to see more Responsible Editor:. tape-measure.com