plastic whistle
| 9th shangfeng ningbo – Ningbo – China, close Shanghai | 8613646661685 | |
| http://en.nbjida.com | ||
| Industry > PLASTICS, rubber, fiberglass, 3D, 4.0.. | ||
It was a little whistle that controlled the audience
For fans, the most heard on the court, in addition to the shouting of mountains and tsunami, must be the referee's whistle. Modern whistle is mostly made by plastic manufacturers.
People who have played the whistle should have the impression that there are many small balls in the whistle. The small balls will jump under the action of the air flow, the frequency of sound will also change, and the whistle will change.
And this type of whistle with a ball has a more "professional" name-the pea whistle. It was invented by an inventor named Joseph Hudson around 1884
The whistle originally appeared as a musical instrument or toy. The referees never thought of using a whistle. At the time of the football game, the referees were not holding a whistle, but a handkerchief. They controlled the game by waving a handkerchief. Joseph's client was not a referee, but-the British police. It was later used in competitions and has been used to this day, becoming the most widely used whistle in the world. If you want to own a whistle, you can buy it from a party supplies manufacturer
nbjida
Activity: nbjida
Ningbo Haishu Jida Industry and Trade Co., Ltd. is located in Ningbo, an important port city on the southeast coast of China, and the economic center of the south wing of the Yangtze River Delta. Our company was established for more than 15 years. we offered all kinds of plastic products and party supplies. After more than ten years of development, and constantly develops products with higher quality, more beautiful appearance and more comfortable use. We also won a good reputation in the industry. Cooperating companies include: $ 0.99, RINCO, OTC, amscan, DT (GREENBRIER INTERNATIONAL, INC), GOODLETTSVILLE, Redmptionplus and other companies. our company has high-quality professional designer and production staff, adhering to the "quality first, prompt delivery, customer first" business principle. We Mainly produces plastic products, various crafts, etc., also we can design and manufacture various products according to customer needs. Nowadays Ningbo Jida look forward to progressing with customers together, sharing resources and new creations of technological civilization.
