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Quality Control


Many manufacturers here may have some experience in dealing with suppliers in China, in which they found communication is a difficult thing, for example, language, time difference, how to relate the Chinese industrial standard, etc.

IQE, has bilingual professionals in manufacturing, engineering, etc. When you deal with IQE, you do not have the above communication problems.

Supplied Material

We require all our suppliers to provide us with the original certificate of material for their products, and we check the chemical and mechanical properties of the supplied material statistically.


Our metal stamping and plastic molding plants have ISO 9001-9002 certificates and our metal forging and casting plants have ISO9001-2000 and ISO/TS16949 certificates.

Test facilities and equipment

Our plants have Chemical test Laboratory, Metallographic Analysis Lab, Mechanical Test Laboratory, CMM, ARL-3460 Spectrometer, Germany RS1000 spectrometer, etc.

We are equipped with advanced metaloscope and vision analysis system. Through this system we can make a quick and accurate microstructure analysis of each batch of iron liquid.

For the chemical monitoring of the iron casting line, we employ Germany RS1000 spectrometer to make a quick analysis on the composition of the iron liquid. We do this test for each batch of iron liquid. For those batches of iron liquid that don’t meet our standard, we don’t allow it to be used for production. We also have a complete set of sand molding test equipment, which can test the ventilation, humidity and moisture content of the sand sample taken on line every 45 minutes.

To ensure the quality of forging items, we use a magnetic crack detector.

We use advanced material mechanical test equipment to check the tensile strength, hardness and elongation of the steel.