Quality Control

Quality is important to TDL mold manufacturing, it is also non-negotiable for clients.
TDL relies on high-quality plastic molds and injection molding products to obtain a very good reputation, trust and long-term cooperation with clients.

Testing Equipment

TDL is proud to hold the ISO 9001:2015 certification, an internationally recognized quality management standard. TDL factory is also: IATF16949:2016 certified, ISO 13485:2016 certified. 

ISO9001 -Quality Control

Our factory holds an ISO 9001-2015 certificate— a proof of our commitment to quality.

POSI Certificate - Medical Device
Our facility complies with established manufacturing standards like the DIN-2768-fine and DIN-2768-medium to deliver premium-quality custom-made parts.
IATF Automotive
Our factory holds an IATF 16049:2016 certificate— a proof of our commitment to Automotive parts quality.

Quality Control Process

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Incoming Material Inspection

All raw materials are verified for conformity upon receipt. Our Quality Control team inspect dimensions, hardness to ensure molds’ long service life.

Manufacturing Inspection

In the manufacturing process, measurement of each mold parts and the electrodes is essential. Only when the dimension of each part is confirmed will it enter the next step. The advantage of doing this is to spot any possible errors in advance, avoiding waste of time and money.

plastic injection mold manufacturers
plastic injection molding manufacturers

Finished Products and Shipment Inspection

Finished parts undergo final inspection by our Quality System Manager or shipping personnel prior to any shipment. All parts are visually inspected and are carefully packaged and compactly packaged to ensure their safe arrival to our customers at minimum cost.

Customer Complain Handling

Once our sales reps receive your complaints, our team of engineers will conduct a meeting for a solution within 48 hours.

Meet Our Quality Control Experts

Our certified and dedicated team of quality control engineers and support staff work hand-in-hand to ensure high-quality products and positive experiences for our clients


Project Director

Quality Engineer


Quality Engineer


Quality Control Inspector

quality inspector


Quality Control Inspector

What our Customers Say