Quality Assurance

Testing and Inspection

We have full sets of test equipment to inspect our products, the main tests are custom testing and optional testing to ensure our products are 100% quality, From raw material to final product, we completely comply with the ISO 9001 quality management system, and each operator in the process of manufacturing and testing should be instructed as standard or relative documents, each inspection should be recorded, and offer relative files for customers.

Standard Tests

Testing	Type	Standard	Range
Visual Inspection	NDT		Standard
Dimensional	NDT		Standard
Material Identification	NDT	E1476	Standard
Tensile Strength	Destructive	A370	Standard
Flattening Test	Destructive	A370	Standard
Flare Test	Destructive	A370	Standard
Flange Test	Destructive	A370	Standard
Reverse Bend	Destructive	A370	Standard
Hardness	Destructive	A370	Standard
Eddy Current Test	NDT	E309	Standard
Ultrasonic Test	NDT	E213	Option
Hydrostatic Test	NDT	A1016	Option
Corrosion Test	Destructive	A262-E	Option

Professional Manufacturing

DONGSHANG Stainless holds advanced producing facilities, including auto welding machines, cold drawing machines, cold rolling machines, heat treatment furnaces, straightening machines, polishing machines, auto welding machines and bright annealing devices, these machines have hard strength and accuracy to produce a wide range of size and material products.

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