Commercial manufacture is difficult because the materials can be rare, expensive, toxic or complex to synthesise.
However, the blade is complicated in shape, and the material used for its manufacture is difficult to deform.
The main challenge is to manufacture this difficult-to-cut work material, considering its quality criteria and economical aspects.
In 1788, Boulton set up a mint in Birmingham, powered by the pair's steam engine, which manufactured coins difficult to counterfeit.
The current talks are aimed at agreeing restrictions to make the manufacture of warheads difficult as a reassurance to the West but Iran has resisted constraints on its nuclear capability.
These evolutions, due to an increasing use of embedded electronics, make manufacture much more difficult.
Currently the inductor is only used where necessary, for a number of reasons: (1) compared to the capacitor and resistor, inductor is expensive to manufacture, and particularly difficult to realize in microcircuit form.
After consulting with the steel companies and the railroads, Carlson produced a scaled-back cylindrical design that would be much easier to manufacture, but still difficult to transport.
According to scientists at NIPRD, finding a commercial partner in Nigeria to scale up and manufacture Niprisan proved difficult as the local pharmaceutical industry in Nigeria has traditionally focused on marketing and distribution, with limited capacity in formulation and development.
But neither study compares the number of cases with the number of tires manufactured, making it difficult to assess the scope of the problem.
