By quality planning in advance, we have quality management system as a guarantee concerning the processes from products design, raw material purchasing, storage and production to finished goods inspection, package and shipment, etc.
Besides, we have our own physical & chemical laboratory, which makes it possible to inspect each batch of raw materials for the purpose of assuring the high quality..
Setting up a measuring & testing room,JDZ has already been equipped with a high-precision measuring and testing equipment to make sure the process measuring precision.

Hardness tester


Poughness profiler

Quality inspection

Length measuring instrument