Quality is the lifeline of one company.

 

In order to bring clients more high efficiency and competitive, TDD products and Superman drill tools have strict Quality Control Procedure on the production line, the QC will be applied strictly from the raw materials ,drawing,forging,testing,package to transport etc.

TDD have professional testing team,Professional inspectors perform systematic testing Professional inspectors from TDD carry on a systematic inspection before the goods are dispatched, our normative inspection procedure normally includes the following sections:

1) Checking goods according to the customers' technical requirement and   commercial contract, controlling the quality and/or consistency of goods

2)Examining the main points, such as surface treatment, material strength, logo and color consistency etc.

3) Verifying compliance with the standards of the destination country (e.g. ASME or CE or Q/SPM2010-001 & «China Steel Structure Association Brazing Steel Brazing Branch Branch Handling Principles for DTH Drill Bit Quality Problems»