Quality Control

TNN is committed to meeting the expectations and requirements of our customers. We at TNN realize that our success totally depends upon the highest level of employee involvement and their continuous improvement to optimize their performance.

All of our employees are dedicated to complying with the requirements set forth in our quality management system and are continually seeking ways to improve its effectiveness.

Our Quality Policy is communicated to all employees by way of orientation and ongoing internal audits. The Quality Policy Statement is prominently displayed throughout the company’s premises.


ISO 9001:2015
TNN ISO Registration

Quality Objectives

  • 100% Conforming Products
  • 100% On Time Delivery
  • 100% Corrective Action
  • 100% Customer Satisfaction

CMM (Coordinate Measuring Machine) services

TNN Welder

TNN metrology lab certified inspection with virtually unlimited dimensional inspection capabilities utilizing unsurpassed quality measuring equipment and software from Zeiss CMM - Our ultra large precision Gantry Zeiss CMM can inspect extra-large parts up to 197" x 160" x 60" and weight up to 30,000 lbs. TNN had a largest CMM in Houston area.

> Unlimited Dimensional Inspection

> CMM Zeiss Accura - Calypso from Zeiss

> Gantry CMM MMB Calypso Software from Zeiss

> Full Metrology lab - Included 30" Comparator