|Product Name：||Roll on cosmetics small glass bottle|
|Material：||Glass Roll on|
|Specification：||10 ml (g)|
|Place of origin：||Ningbo,China|
|Feature：||Simple and beautiful|
|Refused to recycle materials, refused harmful substances, refused to cut corners. Recyclable, practical and tasteless, wear-resistant and durable, professional dispensing. Insulate air/vacuum, block impurities, store in vacuum, prevent pollution, and clean.
The ball is 1. The wire is subjected to vacuum deoxidation treatment; 2. The wire is cut into a certain length in a sphere forming machine, and the female and male molds on the hemispherical spherical seats on both sides are compressed, and the sphere is formed; 3. Compression forming The ball is sandwiched between the two grinding discs, rotated and applied with pressure to remove the burrs; 4. Heat treatment, after quenching and tempering, can improve the strength and wear resistance of the steel ball. The heat-treated ball is composed of martensite, retained austenite and residual carbide; 5. The heat-treated ball is refined by a special refiner to improve the shape accuracy and surface roughness. Degree; 6. Wash off the surface of the ball and other attachments; 7. Use an optical automatic appearance sorter to check the surface of the ball, detect and remove the ball with scratches on the surface.