Dongying Tousin Precision Metal Ltd.
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Quality Control

        In Tousin, quality control is an active function of manufacturing. Quality assurance starts the minute raw materials come in the door and continues through every stage of the casting process. We achieve part-to-part consistency, so the last casting is the same high quality as the first.
        All our manufactures have quality control systems complying with ISO9001:2015 quality control systems. Continuing statistical process control and process capability improvement is applied to all products manufacturing process. Our commitment and continuous effort in improving product quality has established our image as a high quality manufacturer and supplier.

  • 3D Optical Image Measuring Instrument
    3D Optical Image Measuring Instrument
  • CMM-ZEISS
    CMM-ZEISS
  • Impact Tester
    Impact Tester
  • Hardness Tester
    Hardness Tester
  • Metal Spectrum Analyzer
    Metal Spectrum Analyzer
  • Tensile Tester
    Tensile Tester

●  Our entire products have to pass strict inspection before they go out.

        We have both metallurgical engineer, quality control technician Staffs and spectrometer chemical analysis machine, three-dimensional dimension inspection machine to ensure good quality. Relying on our factory, you can not only gain the competitive product price, but also can gain the technical support for product quality improving and new product developing from our engineer team.
        To assure top quality, we have created a unique QC system based on ISO9001 and four “S” quality control principle of Japan . We maintain stringent quality controls throughout all phases of material preparation, production and final test and inspection. Under this system, annual 800 tons of castings keep first-class quality. Among which, 95% is exported to international market and win good reputation.