Polish term (edited): klastry zaopatrzeniowe

Why does China enjoy such a huge manufacturing-cost advantage over other countries? Low-cost labor certainly comes into play, but it’s only part of the answer. Another factor — and in many cases an even bigger one — is the existence of supply clusters. These interconnected groups of companies in close geographical proximity to one another are a big source of supply chain and business advantage.
http://www.esupplychain.eu/en/info/viewart/73,Supply_Cluster...


--------------------------------------------------
Note added at 6 hrs (2011-05-12 17:20:53 GMT)
--------------------------------------------------

As several hudred
>>> huNdred
special economic zones has
>>>have
been brought to existence,
>>>into existence; better: been created
clusters in supply chain
>>>j.w.
emerged in China.

Clusters are cooperating cross supply groups
>>>cross supply groups?
of companies, aggregated around large manufacturing firms. Clusters are chains
>>>networks
of interrelated smaller companies.

Nawet po poprawkach, to nie jest zgrabna angielszczyzna.