The advanced Computer Auxiliary Design(CAD) is employed for Dalong chains.Stress analysis
of
finite element for the chains has been made to ensure design reliability of the
product.quality control
spots have been established for every process during manufacturing all the
components.Every certain
amount of products are to go through quality inspection and physicochemistry preformance
test which
is to guarantee the quality so as to retain the reputation of Dalong chains world-wide.

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Factory Area |
Photoelastic
Test |
Tensile Test |

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| CAD Design |
Physicochemistry
Analysis |
Fatigue Test |
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