Quality Assurance


At WANHO, every employee is committed to providing the highest level of quality products and service to our valued customers.  Our commitment to this principle at every level of our business remains a key element in our company philosophy and an important factor that differentiates WANHO from many of today’s suppliers.

Our quality assurance teams reinforce the highest standards through the application of a globalized ISO 9001:2015 and ISO 14001:2015 directive and an organized set of internally developed quality-assurance programs.   Continuous monitoring and execution of our internal policies and procedures, as defined in our “Quality Control Manual”, assures an elevated level of consistency in every discipline of our business and throughout all regional facilities.

Qualified personnel and the utilization of state-of-the-art equipment, ensures WANHO meets and exceeds your quality expectations, as well as adhering to the most stringent specification of your industry.  Each program has been established for compliance in whole, or in part, with critical industry directives and standards to include ISO 9001:2015, ISO 14001:2015, Mil-I-45208, ISO/IEC 17025, ANSI/ASME, API member policy, and ASTM specification.

Nothing is left to chance, from vendor selection, raw material qualification, WIP inspection and process control, to material tracking, production control, finished-good inspection, freight coordination and logistics oversight, you can remain confident that we have you covered!

In-house Testing Capabilities 


Failure Analysis

Proof Load

Hydrogen Embrittlement


Magnetic Permeability

Torque Shear 

Rotational Capacity

Plating Thickness

Fatigue Testing

Dimensional Measurement 

Adhesion Testing

Bend Testing

Charpy Impact Testing











Quality Services 

Formalized Reporting

On-site Quality Seminars

Product Tear Downs (Value Analysis)

Independent Quality Inspections