Dongguan Enuo mold Co., Ltd is a subsidiary of Hong Kong BHD Group, plastic mold design and manufacturing is their core business. Furthermore, metal parts CNC machining, prototype products R&D, inspection fixture/Gauge R&D, plastic products molding, spraying and assembly also be engaged in.
A jig's primary purpose is to provide repeatability, accuracy, and interchangeability in the manufacturing of products. A jig is often confused with a fixture; a fixture holds the work in a fixed location. A device that does both functions (holding the work and guiding a tool) is called a jig.[citation needed]
An example of a jig is when a key is duplicated; the original is used as a jig so the new key can have the same path as the old one. Since the advent of automation and computer numerical controlled (CNC) machines, jigs are often not required because the tool path is digitally programmed and stored in memory. Jigs may be made for reforming plastics.
Jigs or templates have been known long before the industrial age. There are many types of jigs, and each one is custom-tailored to do a specific job.
The United States has many competitive private and public institutions of higher education. The majority of the world's top universities listed by different ranking organizations are in the U.S. There are also local community colleges with generally more open admission policies, shorter academic programs, and lower tuition.
In 2018, U21, a network of research-intensive universities, ranked the United States first in the world for breadth and quality of higher education, and 15th when GDP was a factor.
As for public expenditures on higher education, the U.S. trails some other OECD nations but spends more per student than the OECD average, and more than all nations in combined public and private spending.
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