A promising new packaging material--polylactic acid

Polylactic acid (PLA) is a new type of polyester material produced from organic acid lactic acid. It has advantages over existing plastic materials such as polyethylene, polypropylene, and polystyrene. It is defined by the industry as the most promising for the new century. The new packaging mater ---MORE---

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Effect of wear-in wear on medium density fiberboard

Studying the characteristics of the wear and tear of the working material of the cemented carbide knife during milling can explain the working condition of the cutting tool on the influence of the sharpened sharp edge in the initial stage of the cutting process; find out the r ---MORE---

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Champagne cork pops up with amazing power

A few days ago, German scientists carried out relevant measurement registrations on the speed of the champagne corks flying out. Frederick Black of the University of Science and Technology in Clausenthal in Northwestern Germany found that after violent shaking of the champagne bottle, the pressur ---MORE---

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Yu Qiuyu Collection design (10)

Lateral File CabinetDue to the metal lateral files dimensions are suitable for both legal and letter sized files, they can hold more files . Lateral filing cabinet being wide is that the top can also be used as a printer stand. They generally have 2 to 4 Metal Drawers , 18" deep and 35" wide. ---MORE---

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