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USAM ENGINEERING CO., LTD will pursue continuous growth
and evolution on the basis of technical skills and experience.


We achieved ISO9001, ISO14001 and have tried our best to guarantee the product and quality. We also gained
TEFLON SERRATION GASKET (Design patent No. 0312926), and have developed various kinds of products on the
basis of our accumulated technical skills & experience, and met customer’s satisfaction.
Certificate of Self inspection from
Hyundai Heavy Industries
Engine & Machinery Division
CERT
Certificate of Self inspection from
Doosan Engine

CERT
Registration of Design for Pipe cover
CERT
Certificate of Venture Business
CERT
DNV Certificate for valves and fittings
CERT
Registration of Design for Gasket
CERT
Registration of Design for Rotocap 1
CERT
Registration of Design for Rotocap 2
CERT
CERTIFICATE OF UTILITY MODELREGISTERATION (VALVE ROTATION DEVICE)
CERT
CERTIFICATE OF PATENT
(VALVE ROTATION DEVICE WITH OIL HOLE)
CERT
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