Qualityis checked in process and then reconfirmed on the end product.

All critical quality parameters are certified by lot then confirmed  with independent audit checks.

ZY has an analysis and test center equipped with the most advanced instruments such as FESEM, Atom-absorption Spectrophotometer, spectrum microscopy, Laser Particle Sizer, BET surface area detector, and universal mechanical testing machine. Now all physical and chemical properties can be tested. Raw materials like tungsten, Co, APT, W/WC, cemented carbide and tungsten alloy can be analyzed.

A machining laboratory for cutting tools has been set up to develop new cemented carbide products and insure their quality. It also establishes cutting parameters of tools for customers. Workers and technicians  are trained regularly to improve their skills, so that we can provide our customers with highest quality products and services.