A perfect quality control processSinorock quality control process covers selection of raw materials, incoming inspection, process quality control, finished products inspection.

• 

  

  Incoming inspection

  Raw material, workblank and other auxiliary material will be inspected. Sinorock® cooperates with leading enterprises of raw material. The quality of raw material is assured to be absolutely credible.

• Process quality control

  Patrol inspectors examine every working procedure strictly according to the production technique. They record data, identify marks, and archive the records regularly.

  

  
• 

  

  Finished product inspection

  Finished products will be tested according to the process of delivery inspection. Only qualified products can be allowed to delivered out of storage.